| ( | ( | X | − | 160573 2500 | ) | − | 2 | ) | ÷ | 2 | = | - | 17 5 |
| 方程左边 = | ( | X | − | 160573 2500 | ) | × | 1 2 | − | 2 | × | 1 2 |
| = | ( | X | − | 160573 2500 | ) | × | 1 2 | − | 1 |
| = | X | × | 1 2 | − | 160573 2500 | × | 1 2 | − | 1 |
| = | X | × | 1 2 | − | 160573 5000 | − | 1 |
| = | 1 2 | X | − | 165573 5000 |
1 2 | X | − | 165573 5000 | = | - | 17 5 |
1 2 | X | = | - | 17 5 | + | 165573 5000 |
1 2 | X | = | 148573 5000 |
| X | = | 148573 5000 | ÷ | 1 2 |
| = | 148573 5000 | × | 2 |
| = | 148573 2500 | × | 1 |
| X | = | 148573 2500 |
| X | = | 59.4292 |