| 2 | − | ( | 2 | x | − | 4 | ) | ÷ | 3 | = | - | ( | x | − | 7 | ) | ÷ | 6 |
| 方程左边 = | 2 | − | 2 | x | × | 1 3 | + | 4 | × | 1 3 |
| = | 2 | − | 2 3 | x | + | 4 3 |
| = | 10 3 | − | 2 3 | x |
10 3 | − | 2 3 | x | = | - | ( | x | − | 7 | ) | ÷ | 6 |
| 方程右边 = | - | x | × | 1 6 | + | 7 | × | 1 6 |
| = | - | x | × | 1 6 | + | 7 6 |
10 3 | − | 2 3 | x | = | - | 1 6 | x | + | 7 6 |
| - | 2 3 | x | + | 1 6 | x | = | 7 6 | − | 10 3 |
| - | 1 2 | x | = | 7 6 | − | 10 3 |
| - | 1 2 | x | = | - | 13 6 |
13 6 | = | 1 2 | x |
1 2 | x | = | 13 6 |
| x | = | 13 6 | ÷ | 1 2 |
| = | 13 6 | × | 2 |
| = | 13 3 | × | 1 |
| x | = | 13 3 |
| x | = | 4.333333 |