| 1 | − | 1 2 | x | ÷ | 3 10 | − | 1 5 | x | − | 1 | ÷ | 3 10 | = | 3 10 | x | ÷ | 1 50 |
| 方程左边 = | 1 | − | 5 3 | x | − | 1 5 | x | − | 10 3 |
| = | - | 7 3 | − | 28 15 | x |
| - | 7 3 | − | 28 15 | x | = | 3 10 | x | ÷ | 1 50 |
| 方程右边 = | 15 | x |
| - | 7 3 | − | 28 15 | x | = | 15 | x |
| - | 28 15 | x | − | 15 | x | = | 7 3 |
| - | 253 15 | x | = | 7 3 |
| - | 7 3 | = | 253 15 | x |
253 15 | x | = | - | 7 3 |
| x | = | - | 7 3 | ÷ | 253 15 |
| = | - | 7 3 | × | 15 253 |
| = | - | 7 | × | 5 253 |
| x | = | - | 35 253 |
| x | = | - 0.13834 |