| X | = | 157 50 | + | 102 25 | + | ( | X | × | 15 100 | ) |
| 方程右边 = | 361 50 | + | ( | X | × | 15 100 | ) |
| X | = | 361 50 | + | ( | X | × | 15 100 | ) |
| 方程右边 = | 361 50 | + | X | × | 15 100 |
| X | = | 361 50 | + | 15 100 | X |
| X | − | 15 100 | X | = | 361 50 |
17 20 | X | = | 361 50 |
| X | = | 361 50 | ÷ | 17 20 |
| = | 361 50 | × | 20 17 |
| = | 361 5 | × | 2 17 |
| X | = | 722 85 |
| X | = | 8.494118 |