| ( | 10998 | − | X | ) | ÷ | 10350 | = | 23 25 |
| 方程左边 = | 10998 | × | 1 10350 | − | X | × | 1 10350 |
| = | 611 575 | − | X | × | 1 10350 |
611 575 | − | 1 10350 | X | = | 23 25 |
| - | 1 10350 | X | = | 23 25 | − | 611 575 |
| - | 1 10350 | X | = | - | 82 575 |
82 575 | = | 1 10350 | X |
1 10350 | X | = | 82 575 |
| X | = | 82 575 | ÷ | 1 10350 |
| = | 82 575 | × | 10350 |
| = | 82 | × | 18 |
| X | = | 1476 |