| x | − | ( | x | − | 2 | ) | ÷ | 5 | = | ( | ( | 2 | x | − | 5 | ) | ÷ | 3 | ) | − | 3 |
| 方程左边 = | x | − | x | × | 1 5 | + | 2 | × | 1 5 |
| = | x | − | x | × | 1 5 | + | 2 5 |
| = | 4 5 | x | + | 2 5 |
4 5 | x | + | 2 5 | = | ( | ( | 2 | x | − | 5 | ) | ÷ | 3 | ) | − | 3 |
| 方程右边 = | ( | 2 | x | − | 5 | ) | ÷ | 3 | − | 3 |
| = | 2 | x | × | 1 3 | − | 5 | × | 1 3 | − | 3 |
| = | 2 3 | x | − | 5 3 | − | 3 |
| = | 2 3 | x | − | 14 3 |
4 5 | x | + | 2 5 | = | 2 3 | x | − | 14 3 |
4 5 | x | − | 2 3 | x | = | - | 14 3 | − | 2 5 |
2 15 | x | = | - | 14 3 | − | 2 5 |
2 15 | x | = | - | 76 15 |
| x | = | - | 76 15 | ÷ | 2 15 |
| = | - | 76 15 | × | 15 2 |
| = | - | 38 | × | 1 |
| x | = | - | 38 |