| X | + | 17 10 | ( | 16 100 | − | X | ) | = | 23 100 |
| 方程左边 = | X | + | 17 10 | × | 16 100 | − | 17 10 | X |
| = | X | + | 34 125 | − | 17 10 | X |
| = | - | 7 10 | X | + | 34 125 |
| - | 7 10 | X | + | 34 125 | = | 23 100 |
| - | 7 10 | X | = | 23 100 | − | 34 125 |
| - | 7 10 | X | = | - | 21 500 |
21 500 | = | 7 10 | X |
7 10 | X | = | 21 500 |
| X | = | 21 500 | ÷ | 7 10 |
| = | 21 500 | × | 10 7 |
| = | 3 50 | × | 1 |
| X | = | 3 50 |
| X | = | 0.06 |