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the 4 in the number 5,634 is blank times blank than the 4 in the number 12,749 . so let 's think about what they 're saying . so the 4 in the number 5,634 , that 's literally in the ones place . it literally just represents 4 . now , the 4 in the number 12,749 , that 4 is in the tens place . it represents 40 . so this ... | now , finally , we 're going to take 25,430 and divide it by 2,543 . well , we already know that the first number is 10 times larger than this number right over here . so literally , if you divide the smaller number into the larger one , you 're going to get 10 . | emely has an even number between 10 and 85 the sum of the digits is an even number less than 10 what is her number ? |
the 4 in the number 5,634 is blank times blank than the 4 in the number 12,749 . so let 's think about what they 're saying . so the 4 in the number 5,634 , that 's literally in the ones place . it literally just represents 4 . now , the 4 in the number 12,749 , that 4 is in the tens place . it represents 40 . so this ... | well , let 's think about it . here you have a 2 in the thousands place . here you have a 2 in the ten thousands place . | hi people does money take place in the world ? |
the 4 in the number 5,634 is blank times blank than the 4 in the number 12,749 . so let 's think about what they 're saying . so the 4 in the number 5,634 , that 's literally in the ones place . it literally just represents 4 . now , the 4 in the number 12,749 , that 4 is in the tens place . it represents 40 . so this ... | here you have a 2 in the ten thousands place . here you have a 5 in the hundreds place . here you have a 5 in the thousands place . | in the number 335 the 3 in the hundreds place is ? |
the 4 in the number 5,634 is blank times blank than the 4 in the number 12,749 . so let 's think about what they 're saying . so the 4 in the number 5,634 , that 's literally in the ones place . it literally just represents 4 . now , the 4 in the number 12,749 , that 4 is in the tens place . it represents 40 . so this ... | let 's do another one . in the number 3,779,264 , how many times less is the value of the second 7 than the value of the first 7 ? how many times less is the value of the second 7 than the value of the first 7 ? | what the value of the 3 in the tens place ? |
the 4 in the number 5,634 is blank times blank than the 4 in the number 12,749 . so let 's think about what they 're saying . so the 4 in the number 5,634 , that 's literally in the ones place . it literally just represents 4 . now , the 4 in the number 12,749 , that 4 is in the tens place . it represents 40 . so this ... | this is fun . fill in the following blanks to complete the relationships between 25,430 and 2,543 . all right , so 25,430 is 10 times larger than 2,543 . literally , you take this , you multiply it by 10 , you 're going to get 25,430 . | how do you know that the 2 in 25,430 is 20,000 ? |
the 4 in the number 5,634 is blank times blank than the 4 in the number 12,749 . so let 's think about what they 're saying . so the 4 in the number 5,634 , that 's literally in the ones place . it literally just represents 4 . now , the 4 in the number 12,749 , that 4 is in the tens place . it represents 40 . so this ... | in 25,430 , they 're one place to the left of the digits right over here . now , finally , we 're going to take 25,430 and divide it by 2,543 . well , we already know that the first number is 10 times larger than this number right over here . so literally , if you divide the smaller number into the larger one , you 're... | what is the value of the 2 in the number 42,341 ? |
the 4 in the number 5,634 is blank times blank than the 4 in the number 12,749 . so let 's think about what they 're saying . so the 4 in the number 5,634 , that 's literally in the ones place . it literally just represents 4 . now , the 4 in the number 12,749 , that 4 is in the tens place . it represents 40 . so this ... | now , finally , we 're going to take 25,430 and divide it by 2,543 . well , we already know that the first number is 10 times larger than this number right over here . so literally , if you divide the smaller number into the larger one , you 're going to get 10 . | will the difference between place value always be a number that ends with a 0 such as 1000 and 100000 ? |
the 4 in the number 5,634 is blank times blank than the 4 in the number 12,749 . so let 's think about what they 're saying . so the 4 in the number 5,634 , that 's literally in the ones place . it literally just represents 4 . now , the 4 in the number 12,749 , that 4 is in the tens place . it represents 40 . so this ... | how many times less is the value of the second 7 than the value of the first 7 ? so the second 7 right over here , that 's in the ten thousands place . it literally represents 70,000 , 7 ten thousands , or 70,000 , while this represents 700 thousands , or 700,000 . | is n't the second 7 suppose to be of a larger value than the first one because the first place is the ones place , second place is the tens place , etc ? |
the 4 in the number 5,634 is blank times blank than the 4 in the number 12,749 . so let 's think about what they 're saying . so the 4 in the number 5,634 , that 's literally in the ones place . it literally just represents 4 . now , the 4 in the number 12,749 , that 4 is in the tens place . it represents 40 . so this ... | in the number 3,779,264 , how many times less is the value of the second 7 than the value of the first 7 ? how many times less is the value of the second 7 than the value of the first 7 ? so the second 7 right over here , that 's in the ten thousands place . | what is the importance of place value and what jobs would you use it in ? |
the 4 in the number 5,634 is blank times blank than the 4 in the number 12,749 . so let 's think about what they 're saying . so the 4 in the number 5,634 , that 's literally in the ones place . it literally just represents 4 . now , the 4 in the number 12,749 , that 4 is in the tens place . it represents 40 . so this ... | so let 's think about what they 're saying . so the 4 in the number 5,634 , that 's literally in the ones place . it literally just represents 4 . | what happens if the numbers go more than ones place ? |
the 4 in the number 5,634 is blank times blank than the 4 in the number 12,749 . so let 's think about what they 're saying . so the 4 in the number 5,634 , that 's literally in the ones place . it literally just represents 4 . now , the 4 in the number 12,749 , that 4 is in the tens place . it represents 40 . so this ... | in the number 3,779,264 , how many times less is the value of the second 7 than the value of the first 7 ? how many times less is the value of the second 7 than the value of the first 7 ? so the second 7 right over here , that 's in the ten thousands place . | why do we need place value ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | we have two positive numbers . let me draw a number line . so let me draw a number line . | is there an easy way to do this in your head without a number line ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | it 's pretty straightforward . we have two positive numbers . let me draw a number line . | whoever put `` sal said 'integers ' but meant 'numbers ' '' would n't integers mean the same as numbers ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | and that is -- so 93 minus 52 . 3 minus 2 is 1 . 9 minus 5 is 4 . | if i am doing a prime tree , how am i supposed to know how many 3 's or 2 's can be used ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | and that is -- so 93 minus 52 . 3 minus 2 is 1 . 9 minus 5 is 4 . | lets say 3 numbers give me 3 3 's 2 2 's and 1 5. how am i supposed to know when i maxed out on my 3 or 2s ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | so this right here , the length of this arrow , you could view it as 3 and 1/8 . now whenever i like to deal with fractions , especially when they have different denominators and all of that , i like to deal with them as improper fractions . it makes the addition and the subtraction , and , actually , the multiplicatio... | what do i do if i want to divide fractions with same signs and different signs ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | we have two positive numbers . let me draw a number line . so let me draw a number line . | what is a negitive number ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | now to that , we want to add a negative 2 and 1/6 . so we 're going to add a negative number . so think about what negative 2 and 1/6 is going to be like . | can you turn a negative number into positive number ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | so you get 6 . so 3/4 is the same thing as 6/8 . if we have 25/8 and we 're adding 6/8 to that , that gives us 25 plus 6 is 31/8 . so this number right over here , this number right over here , is 31/8 . | how are the number 25/8 + 6/8 = 31/8 ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | we have two positive numbers . let me draw a number line . so let me draw a number line . | why do i have to use a number line when adding fractions ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | so this right here , the length of this that we 're moving to the right is 3/4 . so plus 3/4 . now where does this put us ? | what is the point of the orange arrow 4 ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | it 's pretty straightforward . we have two positive numbers . let me draw a number line . | what is the point of mixed numbers ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | or the length of this arrow , the absolute value of that number , is 31/8 , a little bit less than 4 . if you wanted to write that as a mixed number , it would be what ? it would be 3 and 7/8 . | how do you convert the mixed number to an improper fraction ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | so we 're going to subtract , or i guess we 're going to say we 're going to add a negative 1 . we 're going to add a negative 2 and then a negative 1/6 . so let me draw . | can you have a denominator that is negative ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | so we 're going to subtract , or i guess we 're going to say we 're going to add a negative 1 . we 're going to add a negative 2 and then a negative 1/6 . so let me draw . | whats the key to addng or subtracting a negative fraction with a positive fraction i know negative ad negative agualls a negative and the same for positive but how do you determine what the sign is if their different ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | it 's pretty straightforward . we have two positive numbers . let me draw a number line . | do you need to make mixed numbers into fractions ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | so we have to multiply 3 by 2 as well . so you get 6 . so 3/4 is the same thing as 6/8 . if we have 25/8 and we 're adding 6/8 to that , that gives us 25 plus 6 is 31/8 . so this number right over here , this number right over here , is 31/8 . | so would n't it be 31/8 x -11/6 ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | we have two positive numbers . let me draw a number line . so let me draw a number line . | is it necessary to use a number line ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | so we can just add them . we just have to find a like denominator . so we have 25 over 8 . | like a good neighbor state farm is there with what ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | well , both of these are positive integers . so we can just add them . we just have to find a like denominator . | do you add the fractions together or is there something that must be done ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | we have two positive numbers . let me draw a number line . so let me draw a number line . | can a number line just keep going ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | well , both of these are positive integers . so we can just add them . we just have to find a like denominator . | why do u need to add fractions ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | it makes the addition and the subtraction , and , actually , the multiplication and the division a lot easier . so 3 and 1/8 is the same thing as 8 times 3 is 24 , plus 1 is 25 over 8 . so this is 25 over 8 , which is the same thing as 3 and 1/8 . | how do you get 25/8 out of 3 1/8 ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | so we 're going to subtract , or i guess we 're going to say we 're going to add a negative 1 . we 're going to add a negative 2 and then a negative 1/6 . so let me draw . | what is the denominators had a negative sign , how would you add or subtract the fraction ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | we have two positive numbers . let me draw a number line . so let me draw a number line . | why do you use the number line ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | so we 're going to subtract , or i guess we 're going to say we 're going to add a negative 1 . we 're going to add a negative 2 and then a negative 1/6 . so let me draw . | what do you do when multiplying negative fractions ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | we have two positive numbers . let me draw a number line . so let me draw a number line . | how are we supposed to use a number line when we do n't have much time is there a shorter method ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | we have 25 over 8 plus 3/4 . that 's the same thing as we need to find a common denominator here . the common denominator , or the least common multiple of 4 and 8 is 8 . | why do you need to find common denominator ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | so it 's going to be something over 8 . to get from 4 to 8 , we multiply by 2 . so we have to multiply 3 by 2 as well . | when you add or subtract fractions without like denoms , in a problem like : -4/8+7/4 , do you get a positive or a negative ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | so this right here , the length of this arrow , you could view it as 3 and 1/8 . now whenever i like to deal with fractions , especially when they have different denominators and all of that , i like to deal with them as improper fractions . it makes the addition and the subtraction , and , actually , the multiplicatio... | is n't negative fractions considered improper ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | so this right here , the length of this arrow , you could view it as 3 and 1/8 . now whenever i like to deal with fractions , especially when they have different denominators and all of that , i like to deal with them as improper fractions . it makes the addition and the subtraction , and , actually , the multiplicatio... | how do we subtract fractions with unlike signs ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | minus 13/6 . and this is equal to , once again , we need to get a common denominator over here . and it looks like 24 will be the common denominator , 24 . and let me make it very clear . | how do you get a common denominator so that you could add easier ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | and this is equal to , once again , we need to get a common denominator over here . and it looks like 24 will be the common denominator , 24 . and let me make it very clear . | where did the 24 common denominator came from ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | so we can just add them . we just have to find a like denominator . so we have 25 over 8 . | when one denominator is 5 and the other one is 10 you would put the denominator as ten then how do i figure out the numerators ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | it 's pretty straightforward . we have two positive numbers . let me draw a number line . | is there a pattern with negative and positive numbers ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | so this is 25 over 8 , which is the same thing as 3 and 1/8 . another way to think about it , 3 is 24 over 8 . and then you add 1/8 to that , so you get 25 over 8 . | do negetive numbers have to always be subtracted , or can you deal with them in another way ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | so this right here , the length of this arrow , you could view it as 3 and 1/8 . now whenever i like to deal with fractions , especially when they have different denominators and all of that , i like to deal with them as improper fractions . it makes the addition and the subtraction , and , actually , the multiplicatio... | how do you add and subtract fractions with different signs without using a numberline ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . | 3 1/8 a negative fraction ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | so we 're going to subtract , or i guess we 're going to say we 're going to add a negative 1 . we 're going to add a negative 2 and then a negative 1/6 . so let me draw . | how would you solve a negative fraction plus a negative fraction ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | so we 're going to subtract , or i guess we 're going to say we 're going to add a negative 1 . we 're going to add a negative 2 and then a negative 1/6 . so let me draw . | why do we need to learn how to add and/or subtract negative fractions already ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | so this right here , the length of this arrow , you could view it as 3 and 1/8 . now whenever i like to deal with fractions , especially when they have different denominators and all of that , i like to deal with them as improper fractions . it makes the addition and the subtraction , and , actually , the multiplicatio... | do you have to simplify the fractions when adding/subtracting the negatives and positive fractions ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | so let me do this in a new color , do it in pink . negative 2 and 1/6 . so we 're going to subtract , or i guess we 're going to say we 're going to add a negative 1 . | so what would 1/6+ -7/9 be ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | so we 're going to subtract , or i guess we 're going to say we 're going to add a negative 1 . we 're going to add a negative 2 and then a negative 1/6 . so let me draw . | can a negative fraction subtract a negative fraction and still get a positive ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | so 2 and 1/6 is the same thing as 6 times 2 is 12 plus 1 is 13 . minus 13/6 . and this is equal to , once again , we need to get a common denominator over here . | so my question is why does the minus sign turn to an addition ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | so we have to multiply 3 by 2 as well . so you get 6 . so 3/4 is the same thing as 6/8 . | how do i get oh noes the error charecter ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | 3 and 1/8 is going to be right about there . so let me just draw its absolute value . so this 3 and 1/8 is going to be 3 and 1/8 to the right of 0 . | -what was the absolute value ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | you could just say , hey , look , when you add this arrow , this thing that 's moving to the left -- we could put it over here , and you would get straight to negative 2 and 1/6 . but we 're adding this negative 2 and 1/6 . it 's the same thing as subtracting a positive 2 and 1/6 . | do the same rules of adding and subtracting negative numbers apply with fractions ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | so we 're going to subtract , or i guess we 're going to say we 're going to add a negative 1 . we 're going to add a negative 2 and then a negative 1/6 . so let me draw . | also , do of multiplying and dividing negative numbers apply with fractions ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | we have two positive numbers . let me draw a number line . so let me draw a number line . | how to number lines work ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | so this right here , the length of this that we 're moving to the right is 3/4 . so plus 3/4 . now where does this put us ? | what is 3,000,000,000,000 divided by 9 ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . | what is a integer anyway ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | so this is 25 over 8 , which is the same thing as 3 and 1/8 . another way to think about it , 3 is 24 over 8 . and then you add 1/8 to that , so you get 25 over 8 . | do you think that the answer is 1 17/24 ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | you have to multiply by 3 to get to the 24 over here . so we multiply by 3 on the 31 . that gives us 93 . and then to go from 6 to 24 , you have to multiply by 4 . | ca n't you just switch the 93 here as in 31 ( 3 ) =93 so 13 ( 3 ) is 39 ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | another way to think about it , 3 is 24 over 8 . and then you add 1/8 to that , so you get 25 over 8 . so this is our starting point . | how 'd you get the 25 over 8 ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | so let me do this in a new color , do it in pink . negative 2 and 1/6 . so we 're going to subtract , or i guess we 're going to say we 're going to add a negative 1 . | what is 1/6 as a fraction ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | so let me do this in a new color , do it in pink . negative 2 and 1/6 . so we 're going to subtract , or i guess we 're going to say we 're going to add a negative 1 . | what is 1/7 as a fraction ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | it makes the addition and the subtraction , and , actually , the multiplication and the division a lot easier . so 3 and 1/8 is the same thing as 8 times 3 is 24 , plus 1 is 25 over 8 . so this is 25 over 8 , which is the same thing as 3 and 1/8 . | what is 1/8 as a fraction ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | so this right here , the length of this that we 're moving to the right is 3/4 . so plus 3/4 . now where does this put us ? | is 3/4 the same as 75 % or 0.75 % ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | so this right here , the length of this arrow , you could view it as 3 and 1/8 . now whenever i like to deal with fractions , especially when they have different denominators and all of that , i like to deal with them as improper fractions . it makes the addition and the subtraction , and , actually , the multiplicatio... | how do you add three fractions that have unlike denominators ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | so we 're going to subtract , or i guess we 're going to say we 're going to add a negative 1 . we 're going to add a negative 2 and then a negative 1/6 . so let me draw . | how do you add and subtract negative fractions ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | now to that , we want to add a negative 2 and 1/6 . so we 're going to add a negative number . so think about what negative 2 and 1/6 is going to be like . | how can you add a negative number to two big numbers ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | 3 minus 2 is 1 . 9 minus 5 is 4 . so it is 41/24 and positive . | what is negative 5 over 13 plus 5 over 52 ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | now to that , we want to add a negative 2 and 1/6 . so we 're going to add a negative number . so think about what negative 2 and 1/6 is going to be like . | how do you know which way to add or subtract a negative number to a fraction ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | so we 're going to subtract , or i guess we 're going to say we 're going to add a negative 1 . we 're going to add a negative 2 and then a negative 1/6 . so let me draw . | how would i solve a negative addition/subtraction problem ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | so we can just add them . we just have to find a like denominator . so we have 25 over 8 . | can only a numerator or only a denominator of a fraction have a different sign that the rest or does the whole fraction have to be solidly one sign ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | so 2 and 1/6 is the same thing as 6 times 2 is 12 plus 1 is 13 . minus 13/6 . and this is equal to , once again , we need to get a common denominator over here . | how do you add/minus the mixed numbers ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | so let me just draw its absolute value . so this 3 and 1/8 is going to be 3 and 1/8 to the right of 0 . so it 's going to be exactly that distance from 0 to the right . | why is 3 1/8 right by the three ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . | what is a integer anyway ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | it 's pretty straightforward . we have two positive numbers . let me draw a number line . | what happens when you subtract two negatives together ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | we have 25 over 8 plus 3/4 . that 's the same thing as we need to find a common denominator here . the common denominator , or the least common multiple of 4 and 8 is 8 . | why do we need to find a common denominator ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | we have 25 over 8 plus 3/4 . that 's the same thing as we need to find a common denominator here . the common denominator , or the least common multiple of 4 and 8 is 8 . | why do we need to find a common denominator ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | so we have 25 over 8 . we have 25 over 8 plus 3/4 . that 's the same thing as we need to find a common denominator here . | ca n't we just add 25/8 + 3/4 directly ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | and then to go from 6 to 24 , you have to multiply by 4 . we do that in another color . you have to multiply it by 4 , so we have to multiply by 4 up here as well . | why do n't u stick with one color ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | we have 25 over 8 plus 3/4 . that 's the same thing as we need to find a common denominator here . the common denominator , or the least common multiple of 4 and 8 is 8 . | how do i find a common denominator ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | so this right here , the length of this arrow , you could view it as 3 and 1/8 . now whenever i like to deal with fractions , especially when they have different denominators and all of that , i like to deal with them as improper fractions . it makes the addition and the subtraction , and , actually , the multiplicatio... | do you use greatest common factor when adding negative fractions by positive fractions ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | it 's pretty straightforward . we have two positive numbers . let me draw a number line . | whats the difference between integers and numbers ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | now to that , we want to add a negative 2 and 1/6 . so we 're going to add a negative number . so think about what negative 2 and 1/6 is going to be like . | nur do you alias write a negative number in brockest ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | so let me do this in a new color , do it in pink . negative 2 and 1/6 . so we 're going to subtract , or i guess we 're going to say we 're going to add a negative 1 . | i am confused with mixed fraction : +2 3/5 - ( -2/4 ) why negative fractions change to positive and vice versa ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | so we have 25 over 8 . we have 25 over 8 plus 3/4 . that 's the same thing as we need to find a common denominator here . | this is what i find odd 40-60 = -20 8-3 = 5 thus 48 - 63 should equal -25 ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | it makes the addition and the subtraction , and , actually , the multiplication and the division a lot easier . so 3 and 1/8 is the same thing as 8 times 3 is 24 , plus 1 is 25 over 8 . so this is 25 over 8 , which is the same thing as 3 and 1/8 . | how is 3 ( 1/8 ) equals 25/8 ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | or the length of this arrow , the absolute value of that number , is 31/8 , a little bit less than 4 . if you wanted to write that as a mixed number , it would be what ? it would be 3 and 7/8 . | how do you write the fraction sign on the computer ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | and that is -- so 93 minus 52 . 3 minus 2 is 1 . 9 minus 5 is 4 . | what is -3/5+- ( 8/2 ) ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | so let me do this in a new color , do it in pink . negative 2 and 1/6 . so we 're going to subtract , or i guess we 're going to say we 're going to add a negative 1 . | the problem is 1/2 + n = 0 what is n ? |
find the sum 3 and 1/8 plus 3/4 plus negative 2 and 1/6 . let 's just do the first part first . it 's pretty straightforward . we have two positive numbers . let me draw a number line . so let me draw a number line . and i 'll try to focus in . so we 're going to start at 3 and 1/8 . so let 's make this 0 . so you have... | so this right here , the length of this that we 're moving to the right is 3/4 . so plus 3/4 . now where does this put us ? | is 3/4 the same as 75 % or 0.75 % ? |
we 're told to solve and graph the solution for the system of equations right here . and the first thing that jumps out at me , is that we might be able to eliminate one of the variables . and if we just focus on the x , we have a 4x here and we have a 2x right here . if we were to just add them right now , we would ge... | i 'll do it in blue . so right now it 's in standard form . let 's put it in slope-intercept form . | what is the point of standard form ? |
we 're told to solve and graph the solution for the system of equations right here . and the first thing that jumps out at me , is that we might be able to eliminate one of the variables . and if we just focus on the x , we have a 4x here and we have a 2x right here . if we were to just add them right now , we would ge... | i 'll do it in blue . so right now it 's in standard form . let 's put it in slope-intercept form . so we have 4x minus 2y is equal to 5 . | instead of changing 4x - 2y = 5 to slope-intercept form in order to graph it , how ( if you even can ) would you graph the equation while keeping it in standard form ? |
we 're told to solve and graph the solution for the system of equations right here . and the first thing that jumps out at me , is that we might be able to eliminate one of the variables . and if we just focus on the x , we have a 4x here and we have a 2x right here . if we were to just add them right now , we would ge... | anything i do to the left-hand side of the equation i have to do to every term , and i have to do to both sides of the equation . so the second equation becomes negative 4x -- that 's negative 2 times 2x -- plus -- we have negative 2 times negative y -- which is plus 2y is equal to 2.5 times negative 2 , is equal to ne... | if -3x-6y=-63 , how do you know if the `` 6y '' is negative ? |
we 're told to solve and graph the solution for the system of equations right here . and the first thing that jumps out at me , is that we might be able to eliminate one of the variables . and if we just focus on the x , we have a 4x here and we have a 2x right here . if we were to just add them right now , we would ge... | let 's put it in slope-intercept form . so we have 4x minus 2y is equal to 5 . let 's subtract 4x from both sides . | what is the solution of 4x+y=57 and 7x-2y=21 ? |
we 're told to solve and graph the solution for the system of equations right here . and the first thing that jumps out at me , is that we might be able to eliminate one of the variables . and if we just focus on the x , we have a 4x here and we have a 2x right here . if we were to just add them right now , we would ge... | now we can divide both sides by negative 2 . and we are left with y is equal to positive 2x , right , that 's positive 2x , minus 2.5 . so let 's graph that . | how do i solve : 8x-7y=21 2x=3y+4 using addition/elimination ? |
we 're told to solve and graph the solution for the system of equations right here . and the first thing that jumps out at me , is that we might be able to eliminate one of the variables . and if we just focus on the x , we have a 4x here and we have a 2x right here . if we were to just add them right now , we would ge... | any point on this line , which is both of those lines , will satisfy both of these equations . you give me an arbitrary y , solve for x in the top equation , that x and y will also satisfy the bottom equation . so this actually has an infinite number of solutions . | how do i solve : x+3y-z=10 2x+5y+4z=57 3x-y+2z=15 using elimination ? |
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