【初一二元一次方程组计算题100道(有答案)】在初中数学的学习过程中，二元一次方程组是一个重要的知识点。它不仅锻炼了学生的代数思维能力，还为后续学习更复杂的方程和函数打下了坚实的基础。为了帮助同学们更好地掌握这一内容，我们整理了100道二元一次方程组的计算题，并附上详细答案，方便学生练习与自查。
以下为题目及答案的汇总表格：
| 题号 | 方程组 | 解 |
| 1 | x + y = 5 x - y = 1 | x = 3, y = 2 |
| 2 | 2x + y = 7 3x - y = 8 | x = 3, y = 1 |
| 3 | x + 2y = 6 2x - y = 3 | x = 2, y = 2 |
| 4 | 3x + 2y = 12 2x - y = 1 | x = 2, y = 3 |
| 5 | x + y = 10 2x - y = 5 | x = 5, y = 5 |
| 6 | 4x + 3y = 25 2x - y = 3 | x = 4, y = 5 |
| 7 | 3x - 2y = 1 2x + y = 5 | x = 1, y = 2 |
| 8 | 5x + 4y = 34 3x - 2y = 4 | x = 4, y = 3 |
| 9 | 2x + 3y = 13 4x - y = 5 | x = 2, y = 3 |
| 10 | x - y = 1 2x + y = 8 | x = 3, y = 2 |
| 11 | 3x + 2y = 10 2x - y = 1 | x = 2, y = 2 |
| 12 | 4x + y = 11 3x - y = 1 | x = 2, y = 3 |
| 13 | x + 3y = 12 2x - y = 5 | x = 3, y = 3 |
| 14 | 5x + 2y = 19 3x - y = 2 | x = 3, y = 2 |
| 15 | 2x + y = 7 3x - y = 5 | x = 2, y = 3 |
| 16 | x + y = 6 2x - y = 3 | x = 3, y = 3 |
| 17 | 3x - 4y = 1 2x + y = 4 | x = 2, y = 1 |
| 18 | 4x + 5y = 29 2x - y = 1 | x = 3, y = 4 |
| 19 | 2x + 5y = 19 3x - y = 4 | x = 3, y = 3 |
| 20 | x + 2y = 8 3x - y = 7 | x = 4, y = 2 |
| 21 | 5x + 3y = 24 2x - y = 2 | x = 3, y = 3 |
| 22 | 3x + 4y = 17 2x - y = 1 | x = 3, y = 2 |
| 23 | x + 4y = 11 2x - y = 1 | x = 3, y = 2 |
| 24 | 2x + 3y = 11 4x - y = 5 | x = 2, y = 3 |
| 25 | 3x + 2y = 10 4x - y = 5 | x = 2, y = 2 |
| 26 | 5x + y = 16 2x - y = 2 | x = 2, y = 6 |
| 27 | 4x + 3y = 18 2x - y = 2 | x = 3, y = 2 |
| 28 | x + 5y = 14 3x - y = 4 | x = 3, y = 2 |
| 29 | 2x + 4y = 12 3x - y = 5 | x = 4, y = 1 |
| 30 | 3x + 5y = 25 2x - y = 3 | x = 5, y = 2 |
| 31 | x + y = 7 2x - y = 1 | x = 2, y = 5 |
| 32 | 4x + 2y = 18 3x - y = 3 | x = 3, y = 3 |
| 33 | 5x + y = 14 2x - y = 2 | x = 2, y = 4 |
| 34 | 3x + 4y = 19 2x - y = 1 | x = 3, y = 2 |
| 35 | 2x + 3y = 12 4x - y = 6 | x = 3, y = 2 |
| 36 | x + 3y = 10 2x - y = 3 | x = 2, y = 3 |
| 37 | 4x + 5y = 29 3x - y = 4 | x = 3, y = 4 |
| 38 | 2x + 6y = 20 3x - y = 4 | x = 4, y = 2 |
| 39 | 3x + 2y = 14 4x - y = 5 | x = 3, y = 2 |
| 40 | 5x + 2y = 16 3x - y = 2 | x = 2, y = 3 |
| 41 | x + y = 9 2x - y = 3 | x = 4, y = 5 |
| 42 | 3x + 5y = 22 2x - y = 2 | x = 4, y = 2 |
| 43 | 4x + y = 13 2x - y = 1 | x = 3, y = 1 |
| 44 | 2x + 3y = 14 5x - y = 7 | x = 3, y = 4 |
| 45 | 3x + 2y = 12 4x - y = 5 | x = 3, y = 1.5 |
| 46 | 5x + 4y = 26 2x - y = 3 | x = 2, y = 4 |
| 47 | x + 4y = 13 2x - y = 4 | x = 3, y = 2.5 |
| 48 | 3x + 6y = 24 2x - y = 3 | x = 3, y = 2 |
| 49 | 2x + 5y = 17 4x - y = 5 | x = 3, y = 2.2 |
| 50 | 4x + 3y = 17 3x - y = 2 | x = 2, y = 3 |
| 51 | x + 2y = 7 3x - y = 5 | x = 3, y = 2 |
| 52 | 5x + 2y = 18 2x - y = 2 | x = 2, y = 4 |
| 53 | 2x + 4y = 16 3x - y = 5 | x = 4, y = 2 |
| 54 | 3x + 5y = 25 2x - y = 3 | x = 5, y = 2 |
| 55 | x + 3y = 12 2x - y = 5 | x = 3, y = 3 |
| 56 | 4x + 2y = 14 3x - y = 1 | x = 2, y = 3 |
| 57 | 5x + 3y = 21 2x - y = 1 | x = 3, y = 2 |
| 58 | 2x + 3y = 13 4x - y = 5 | x = 2, y = 3 |
| 59 | 3x + 4y = 19 2x - y = 1 | x = 3, y = 2 |
| 60 | x + 5y = 16 2x - y = 2 | x = 2, y = 3 |
| 61 | 4x + y = 10 3x - y = 1 | x = 1, y = 6 |
| 62 | 2x + 5y = 19 3x - y = 4 | x = 3, y = 3 |
| 63 | 3x + 2y = 10 4x - y = 5 | x = 2, y = 2 |
| 64 | 5x + 3y = 21 2x - y = 1 | x = 3, y = 2 |
| 65 | x + 2y = 6 3x - y = 5 | x = 2, y = 2 |
| 66 | 4x + 3y = 18 2x - y = 2 | x = 3, y = 2 |
| 67 | 2x + 4y = 12 3x - y = 5 | x = 4, y = 1 |
| 68 | 3x + 5y = 25 2x - y = 3 | x = 5, y = 2 |
| 69 | x + 3y = 11 2x - y = 3 | x = 2, y = 3 |
| 70 | 5x + 2y = 16 3x - y = 2 | x = 2, y = 3 |
| 71 | 2x + 6y = 20 3x - y = 4 | x = 4, y = 2 |
| 72 | 4x + 5y = 29 3x - y = 4 | x = 3, y = 4 |
| 73 | 3x + 4y = 19 2x - y = 1 | x = 3, y = 2 |
| 74 | x + 4y = 13 2x - y = 4 | x = 3, y = 2.5 |
| 75 | 5x + y = 14 2x - y = 2 | x = 2, y = 4 |
| 76 | 2x + 3y = 14 5x - y = 7 | x = 3, y = 4 |
| 77 | 3x + 2y = 14 4x - y = 5 | x = 3, y = 2 |
| 78 | 4x + 3y = 17 3x - y = 2 | x = 2, y = 3 |
| 79 | x + 5y = 16 2x - y = 2 | x = 2, y = 3 |
| 80 | 5x + 2y = 18 2x - y = 2 | x = 2, y = 4 |
| 81 | 2x + 4y = 16 3x - y = 5 | x = 4, y = 2 |
| 82 | 3x + 5y = 25 2x - y = 3 | x = 5, y = 2 |
| 83 | x + 3y = 12 2x - y = 5 | x = 3, y = 3 |
| 84 | 4x + 2y = 14 3x - y = 1 | x = 2, y = 3 |
| 85 | 5x + 3y = 21 2x - y = 1 | x = 3, y = 2 |
| 86 | 2x + 3y = 13 4x - y = 5 | x = 2, y = 3 |
| 87 | 3x + 4y = 19 2x - y = 1 | x = 3, y = 2 |
| 88 | x + 5y = 16 2x - y = 2 | x = 2, y = 3 |
| 89 | 4x + y = 10 3x - y = 1 | x = 1, y = 6 |
| 90 | 2x + 5y = 19 3x - y = 4 | x = 3, y = 3 |
| 91 | 3x + 2y = 10 4x - y = 5 | x = 2, y = 2 |
| 92 | 5x + 3y = 21 2x - y = 1 | x = 3, y = 2 |
| 93 | x + 2y = 6 3x - y = 5 | x = 2, y = 2 |
| 94 | 4x + 3y = 18 2x - y = 2 | x = 3, y = 2 |
| 95 | 2x + 4y = 12 3x - y = 5 | x = 4, y = 1 |
| 96 | 3x + 5y = 25 2x - y = 3 | x = 5, y = 2 |
| 97 | x + 3y = 11 2x - y = 3 | x = 2, y = 3 |
| 98 | 5x + 2y = 16 3x - y = 2 | x = 2, y = 3 |
| 99 | 2x + 6y = 20 3x - y = 4 | x = 4, y = 2 |
| 100 | 4x + 5y = 29 3x - y = 4 | x = 3, y = 4 |
通过以上100道题目的练习，可以帮助学生熟练掌握解二元一次方程组的方法，包括代入法、加减消元法等。建议学生在练习时先独立思考，再对照答案检查，逐步提升自己的解题能力和信心。
