| 160820 | + | ( | 1 100 | X | + | 23100 | ) | + | 27 500 | X | = | X |
| 方程左边 = | 160820 | + | 1 100 | X | + | 23100 | + | 27 500 | X |
| = | 183920 | + | 8 125 | X |
| 183920 | + | 8 125 | X | = | X |
8 125 | X | − | X | = | - | 183920 |
| - | 117 125 | X | = | - | 183920 |
| 183920 | = | 117 125 | X |
117 125 | X | = | 183920 |
| X | = | 183920 | ÷ | 117 125 |
| = | 183920 | × | 125 117 |
| X | = | 22990000 117 |
| X | = | 196495.726496 |