| 15 | ÷ | 102 | + | 2 | ÷ | 447 10 | + | X | ÷ | 500 | + | ( | 75 | − | X | ) | ÷ | 1650 | = | 157 500 |
| 方程左边 = | 5 34 | + | 20 447 | + | X | × | 1 500 | + | ( | 75 | − | X | ) | × | 1 1650 |
| = | 2915 15198 | + | 1 500 | X | + | ( | 75 | − | X | ) | × | 1 1650 |
2915 15198 | + | 1 500 | X | + | ( | 75 | − | X | ) | × | 1 1650 | = | 157 500 |
| 方程左边 = | 2915 15198 | + | 1 500 | X | + | 75 | × | 1 1650 | − | X | × | 1 1650 |
| = | 2915 15198 | + | 1 500 | X | + | 1 22 | − | X | × | 1 1650 |
| = | 19832 83589 | + | 23 16500 | X |
19832 83589 | + | 23 16500 | X | = | 157 500 |
23 16500 | X | = | 157 500 | − | 19832 83589 |
23 16500 | X | = | 3207473 41794500 |
| X | = | 3207473 41794500 | ÷ | 23 16500 |
| = | 3207473 41794500 | × | 16500 23 |
| = | 3207473 2533 | × | 1 23 |
| X | = | 3207473 58259 |
| X | = | 55.055408 |