| ( | 127 20 | − | x | ) | ÷ | x | = | 539 10000 |
| 方程两边同时乘以: | x |
| ( | 127 20 | − | x | ) | = | 539 10000 | x |
127 20 | − | x | = | 539 10000 | x |
| - | x | − | 539 10000 | x | = | - | 127 20 |
| - | 10539 10000 | x | = | - | 127 20 |
127 20 | = | 10539 10000 | x |
10539 10000 | x | = | 127 20 |
| x | = | 127 20 | ÷ | 10539 10000 |
| = | 127 20 | × | 10000 10539 |
| = | 127 | × | 500 10539 |
| x | = | 63500 10539 |
| x | = | 6.02524 |