| 3 | x | ÷ | 4 | + | 4 | ( | 760 | − | x | ) | ÷ | 5 | = | 592 |
| 方程左边 = | 3 4 | x | + | 4 5 | ( | 760 | − | x | ) |
3 4 | x | + | 4 5 | ( | 760 | − | x | ) | = | 592 |
| 方程左边 = | 3 4 | x | + | 4 5 | × | 760 | − | 4 5 | x |
| = | 3 4 | x | + | 608 | − | 4 5 | x |
| = | - | 1 20 | x | + | 608 |
| - | 1 20 | x | + | 608 | = | 592 |
| - | 1 20 | x | = | 592 | − | 608 |
| - | 1 20 | x | = | - | 16 |
| 16 | = | 1 20 | x |
1 20 | x | = | 16 |
| x | = | 16 | ÷ | 1 20 |
| = | 16 | × | 20 |
| x | = | 320 |