| 48 | + | 6 5 | ( | 60 | − | x | ) | = | 24 25 | x |
| 方程左边 = | 48 | + | 6 5 | × | 60 | − | 6 5 | x |
| = | 48 | + | 72 | − | 6 5 | x |
| = | 120 | − | 6 5 | x |
| 120 | − | 6 5 | x | = | 24 25 | x |
| - | 6 5 | x | − | 24 25 | x | = | - | 120 |
| - | 54 25 | x | = | - | 120 |
| 120 | = | 54 25 | x |
54 25 | x | = | 120 |
| x | = | 120 | ÷ | 54 25 |
| = | 120 | × | 25 54 |
| = | 20 | × | 25 9 |
| x | = | 500 9 |
| x | = | 55.555556 |