| 3 | ÷ | 4 | × | ( | 4 | ÷ | 5 | × | x | + | 8 | ) | = | x | − | 8 |
| 方程左边 = | 3 4 | ( | 4 | ÷ | 5 | × | x | + | 8 | ) |
3 4 | ( | 4 | ÷ | 5 | × | x | + | 8 | ) | = | x | − | 8 |
| 方程左边 = | 3 4 | × | 4 | ÷ | 5 | × | x | + | 3 4 | × | 8 |
| = | 3 5 | x | + | 6 |
3 5 | x | + | 6 | = | x | − | 8 |
3 5 | x | − | x | = | - | 8 | − | 6 |
| - | 2 5 | x | = | - | 8 | − | 6 |
| - | 2 5 | x | = | - | 14 |
| 14 | = | 2 5 | x |
2 5 | x | = | 14 |
| x | = | 14 | ÷ | 2 5 |
| = | 14 | × | 5 2 |
| = | 7 | × | 5 |
| x | = | 35 |