113 500 | = | - | 38 500 | + | x | + | ( | - | 38 500 | ) | x |
| 方程右边 = | - | 38 500 | + | x | − | 38 500 | x |
| = | - | 38 500 | + | 231 250 | x |
113 500 | = | - | 38 500 | + | 231 250 | x |
| - | 231 250 | x | = | - | 38 500 | − | 113 500 |
| - | 231 250 | x | = | - | 151 500 |
151 500 | = | 231 250 | x |
231 250 | x | = | 151 500 |
| x | = | 151 500 | ÷ | 231 250 |
| = | 151 500 | × | 250 231 |
| = | 151 2 | × | 1 231 |
| x | = | 151 462 |
| x | = | 0.32684 |