| ( | 2 | x | − | 7 | ) | ÷ | 5 | − | x | = | ( | 4 | + | 3 | x | ) | ÷ | 3 |
| 方程左边 = | 2 | x | × | 1 5 | − | 7 | × | 1 5 | − | x |
| = | 2 5 | x | − | 7 5 | − | x |
| = | - | 3 5 | x | − | 7 5 |
| - | 3 5 | x | − | 7 5 | = | ( | 4 | + | 3 | x | ) | ÷ | 3 |
| 方程右边 = | 4 | × | 1 3 | + | 3 | x | × | 1 3 |
| = | 4 3 | + | 1 | x |
| - | 3 5 | x | − | 7 5 | = | 4 3 | + | 1 | x |
| - | 3 5 | x | − | 1 | x | = | 4 3 | + | 7 5 |
| - | 8 5 | x | = | 4 3 | + | 7 5 |
| - | 8 5 | x | = | 41 15 |
| - | 41 15 | = | 8 5 | x |
8 5 | x | = | - | 41 15 |
| x | = | - | 41 15 | ÷ | 8 5 |
| = | - | 41 15 | × | 5 8 |
| = | - | 41 3 | × | 1 8 |
| x | = | - | 41 24 |
| x | = | - 1.708333 |