| 192 | + | 48 | ( | 9 100 | ) | = | 108 | + | 48 | − | x | ( | 4 25 | ) |
| 方程左边 = | 192 | + | 48 | × | 9 100 |
| = | 192 | + | 108 25 |
| = | 4908 25 |
4908 25 | = | 108 | + | 48 | − | x | ( | 4 25 | ) |
| 方程右边 = | 156 | − | x | ( | 4 25 | ) |
4908 25 | = | 156 | − | x | ( | 4 25 | ) |
| 方程右边 = | 156 | − | x | × | 4 25 |
4908 25 | = | 156 | − | 4 25 | x |
4 25 | x | = | 156 | − | 4908 25 |
4 25 | x | = | - | 1008 25 |
| x | = | - | 1008 25 | ÷ | 4 25 |
| = | - | 1008 25 | × | 25 4 |
| = | - | 252 | × | 1 |
| x | = | - | 252 |