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