| 9 | ÷ | 10 | = | ( | x | − | 5 | ) | ÷ | ( | ( | 5 | ÷ | 4 | ) | x | − | 10 | ) |
| 方程两边同时乘以: | ( | ( | 5 | ÷ | 4 | ) | x | − | 10 | ) |
| 9 | ÷ | 10 | × | ( | ( | 5 | ÷ | 4 | ) | x | − | 10 | ) | = | ( | x | − | 5 | ) |
| 9 | ÷ | 10 | × | ( | 5 | ÷ | 4 | ) | x | − | 9 | ÷ | 10 | × | 10 | = | ( | x | − | 5 | ) |
| 9 | ÷ | 10 | × | ( | 5 | ÷ | 4 | ) | x | − | 9 | ÷ | 10 | × | 10 | = | x | − | 5 |
9 10 | ( | 5 | ÷ | 4 | ) | x | − | 9 | = | x | − | 5 |
9 10 | × | 5 | ÷ | 4 | × | x | − | 9 | = | x | − | 5 |
9 8 | x | − | 9 | = | x | − | 5 |
9 8 | x | − | x | = | - | 5 | + | 9 |
1 8 | x | = | - | 5 | + | 9 |
1 8 | x | = | 4 |
| x | = | 4 | ÷ | 1 8 |
| = | 4 | × | 8 |
| x | = | 32 |