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