| 2 | ÷ | 3 | × | ( | x | − | 1 | ) | ÷ | ( | 3 | ÷ | 4 | ) | − | 2 5 | ( | x | + | 1 | ) | ÷ | 1 5 | = | - | 4 |
| 方程两边同时乘以: | ( | 3 | ÷ | 4 | ) |
| 2 | ÷ | 3 | × | ( | x | − | 1 | ) | − | 2 5 | ( | x | + | 1 | ) | ÷ | 1 5 | × | ( | 3 | ÷ | 4 | ) | = | - | 4 | ( | 3 | ÷ | 4 | ) |
| 2 | ÷ | 3 | × | x | − | 2 | ÷ | 3 | × | 1 | − | 2 5 | ( | x | + | 1 | ) | ÷ | 1 5 | × | ( | 3 | ÷ | 4 | ) | = | - | 4 | ( | 3 | ÷ | 4 | ) |
| 2 | ÷ | 3 | × | x | − | 2 | ÷ | 3 | × | 1 | − | 2 5 | ( | x | + | 1 | ) | ÷ | 1 5 | × | ( | 3 | ÷ | 4 | ) | = | - | 4 | × | 3 | ÷ | 4 |
2 3 | x | − | 2 3 | − | 2 | ( | x | + | 1 | ) | ( | 3 | ÷ | 4 | ) | = | - | 3 |
2 3 | x | − | 2 3 | − | 2 | x | ( | 3 | ÷ | 4 | ) | − | 2 | × | 1 | ( | 3 | ÷ | 4 | ) | = | - | 3 |
2 3 | x | − | 2 3 | − | 2 | x | ( | 3 | ÷ | 4 | ) | − | 2 | ( | 3 | ÷ | 4 | ) | = | - | 3 |
2 3 | x | − | 2 3 | − | 2 | x | × | 3 | ÷ | 4 | − | 2 | ( | 3 | ÷ | 4 | ) | = | - | 3 |
2 3 | x | − | 2 3 | − | 3 2 | x | − | 2 | ( | 3 | ÷ | 4 | ) | = | - | 3 |
| - | 5 6 | x | − | 2 3 | − | 2 | ( | 3 | ÷ | 4 | ) | = | - | 3 |
| - | 5 6 | x | − | 2 3 | − | 2 | × | 3 | ÷ | 4 | = | - | 3 |
| - | 5 6 | x | − | 2 3 | − | 3 2 | = | - | 3 |
| - | 5 6 | x | − | 13 6 | = | - | 3 |
| - | 5 6 | x | = | - | 3 | + | 13 6 |
| - | 5 6 | x | = | - | 5 6 |
5 6 | = | 5 6 | x |
5 6 | x | = | 5 6 |
| x | = | 5 6 | ÷ | 5 6 |
| = | 5 6 | × | 6 5 |
| = | 1 | × | 1 |
| x | = | 1 |