| ( | x | − | 2 | ) | ÷ | 5 | = | ( | 2 | x | − | 1 | ) | ÷ | 3 | − | 1 |
| 方程左边 = | x | × | 1 5 | − | 2 | × | 1 5 |
| = | x | × | 1 5 | − | 2 5 |
1 5 | x | − | 2 5 | = | ( | 2 | x | − | 1 | ) | ÷ | 3 | − | 1 |
| 方程右边 = | 2 | x | × | 1 3 | − | 1 | × | 1 3 | − | 1 |
| = | 2 3 | x | − | 1 3 | − | 1 |
| = | 2 3 | x | − | 4 3 |
1 5 | x | − | 2 5 | = | 2 3 | x | − | 4 3 |
1 5 | x | − | 2 3 | x | = | - | 4 3 | + | 2 5 |
| - | 7 15 | x | = | - | 4 3 | + | 2 5 |
| - | 7 15 | x | = | - | 14 15 |
14 15 | = | 7 15 | x |
7 15 | x | = | 14 15 |
| x | = | 14 15 | ÷ | 7 15 |
| = | 14 15 | × | 15 7 |
| = | 2 | × | 1 |
| x | = | 2 |