| - | 2 | ÷ | x | + | 3 | ÷ | ( | 4 | − | x | ) | = | 1 |
| 方程两边同时乘以: | x |
| - | 2 | + | 3 | ÷ | ( | 4 | − | x | ) | × | x | = | 1 | x |
| 方程两边同时乘以: | ( | 4 | − | x | ) |
| - | 2 | ( | 4 | − | x | ) | + | 3 | x | = | 1 | x | ( | 4 | − | x | ) |
| - | 2 | × | 4 | + | 2 | x | + | 3 | x | = | 1 | x | ( | 4 | − | x | ) |
| - | 2 | × | 4 | + | 2 | x | + | 3 | x | = | 1 | x | × | 4 | − | 1 | x | x |
| - | 8 | + | 2 | x | + | 3 | x | = | 4 | x | − | 1 | x | x |
| - | 8 | + | 5 | x | = | 4 | x | − | 1 | x | x |