| 12 | x | ÷ | ( | 8 | − | x | ) | = | ( | 8 | − | 2 | x | ÷ | ( | 8 | − | x | ) | ) | x |
| 方程两边同时乘以: | ( | 8 | − | x | ) |
| 12 | x | = | ( | 8 | − | 2 | x | ÷ | ( | 8 | − | x | ) | ) | x | ( | 8 | − | x | ) |
| 12 | x | = | 8 | x | ( | 8 | − | x | ) | − | 2 | x | ÷ | ( | 8 | − | x | ) | × | x | ( | 8 | − | x | ) |
| 方程两边同时乘以: | ( | 8 | − | x | ) |
| 12 | x | ( | 8 | − | x | ) | = | 8 | x | ( | 8 | − | x | ) | ( | 8 | − | x | ) | − | 2 | x | x | ( | 8 | − | x | ) |
| 12 | x | × | 8 | − | 12 | x | x | = | 8 | x | ( | 8 | − | x | ) | ( | 8 | − | x | ) | − | 2 | x | x | ( | 8 | − | x | ) |
| 12 | x | × | 8 | − | 12 | x | x | = | 8 | x | × | 8 | ( | 8 | − | x | ) | − | 8 | x | x | ( | 8 | − | x | ) | − | 2 | x | x | ( | 8 | − | x | ) |
| 96 | x | − | 12 | x | x | = | 64 | x | ( | 8 | − | x | ) | − | 8 | x | x | ( | 8 | − | x | ) | − | 2 | x | x | ( | 8 | − | x | ) |
| 96 | x | − | 12 | x | x | = | 64 | x | × | 8 | − | 64 | x | x | − | 8 | x | x | ( | 8 | − | x | ) | − | 2 | x |
| 96 | x | − | 12 | x | x | = | 512 | x | − | 64 | x | x | − | 8 | x | x | ( | 8 | − | x | ) | − | 2 | x | x |
| 96 | x | − | 12 | x | x | = | 512 | x | − | 64 | x | x | − | 8 | x | x | × | 8 | + | 8 | x | x |
| 96 | x | − | 12 | x | x | = | 512 | x | − | 64 | x | x | − | 64 | x | x | + | 8 | x | x | x |
| 96 | x | − | 12 | x | x | = | 512 | x | − | 64 | x | x | − | 64 | x | x | + | 8 | x | x | x |
| 96 | x | − | 12 | x | x | = | 512 | x | − | 64 | x | x | − | 64 | x | x | + | 8 | x | x | x |
| x2= | 26 5 |