[
    {
      "prompt": [
        {"role": "user", "content": "Solve for x: 2x + 5 = 15"}
      ],
      "answer": "x = 5"
    },
    {
      "prompt": [
        {"role": "user", "content": "Solve for x: 3x - 7 = 11"}
      ],
      "answer": "x = 6"
    },
    {
      "prompt": [
        {"role": "user", "content": "Solve for x: 4x + 2 = 3x + 10"}
      ],
      "answer": "x = 8"
    },
    {
      "prompt": [
        {"role": "user", "content": "Solve for x: 5x - 4 = 2x + 8"}
      ],
      "answer": "x = 4"
    }
  ]