| ( | 1 5 | x | − | 1 10 | ) | ÷ | 3 5 | − | ( | 1 2 | x | − | 1 10 | ) | ÷ | 2 5 | = | 1 |
| 方程左边 = | 1 5 | x | × | 5 3 | − | 1 10 | × | 5 3 | − | ( | 1 2 | x | − | 1 10 | ) | × | 5 2 |
| = | 1 3 | x | − | 1 6 | − | ( | 1 2 | x | − | 1 10 | ) | × | 5 2 |
| = | 1 3 | x | − | 1 6 | − | 1 2 | x | × | 5 2 | + | 1 10 | × | 5 2 |
| = | 1 3 | x | − | 1 6 | − | 5 4 | x | + | 1 4 |
| = | - | 11 12 | x | + | 1 12 |
| - | 11 12 | x | + | 1 12 | = | 1 |
| - | 11 12 | x | = | 1 | − | 1 12 |
| - | 11 12 | x | = | 11 12 |
| - | 11 12 | = | 11 12 | x |
11 12 | x | = | - | 11 12 |
| x | = | - | 11 12 | ÷ | 11 12 |
| = | - | 11 12 | × | 12 11 |
| = | - | 1 | × | 1 |
| x | = | - | 1 |