| 7500 | × | 10633 10000 | = | ( | x | ÷ | 53 50 | − | 7500 | ) | × | 3 20 |
| 方程左边 = | 31899 4 |
31899 4 | = | ( | x | ÷ | 53 50 | − | 7500 | ) | × | 3 20 |
| 方程右边 = | x | ÷ | 53 50 | × | 3 20 | − | 7500 | × | 3 20 |
| = | x | × | 15 106 | − | 1125 |
31899 4 | = | 15 106 | x | − | 1125 |
| - | 15 106 | x | = | - | 1125 | − | 31899 4 |
| - | 15 106 | x | = | - | 36399 4 |
36399 4 | = | 15 106 | x |
15 106 | x | = | 36399 4 |
| x | = | 36399 4 | ÷ | 15 106 |
| = | 36399 4 | × | 106 15 |
| = | 12133 2 | × | 53 5 |
| x | = | 643049 10 |
| x | = | 64304.9 |