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