2 5 | x | − | 3 50 | + | 3 2 | = | 7 10 | x | − | 19 50 |
| 方程左边 = | 2 5 | x | + | 36 25 |
2 5 | x | + | 36 25 | = | 7 10 | x | − | 19 50 |
2 5 | x | − | 7 10 | x | = | - | 19 50 | − | 36 25 |
| - | 3 10 | x | = | - | 19 50 | − | 36 25 |
| - | 3 10 | x | = | - | 91 50 |
91 50 | = | 3 10 | x |
3 10 | x | = | 91 50 |
| x | = | 91 50 | ÷ | 3 10 |
| = | 91 50 | × | 10 3 |
| = | 91 5 | × | 1 3 |
| x | = | 91 15 |
| x | = | 6.066667 |