| ( | 78599 | − | 5 2 | X | ) | × | 36 5 | ÷ | 91 5 | × | 9 10 | = | 22247 | + | 6 | X |
| 方程左边 = | ( | 78599 | − | 5 2 | X | ) | × | 162 455 |
| ( | 78599 | − | 5 2 | X | ) | × | 162 455 | = | 22247 | + | 6 | X |
| 方程左边 = | 78599 | × | 162 455 | − | 5 2 | X | × | 162 455 |
| = | 12733038 455 | − | 81 91 | X |
12733038 455 | − | 81 91 | X | = | 22247 | + | 6 | X |
| - | 81 91 | X | − | 6 | X | = | 22247 | − | 12733038 455 |
| - | 627 91 | X | = | 22247 | − | 12733038 455 |
| - | 627 91 | X | = | - | 2610653 455 |
2610653 455 | = | 627 91 | X |
627 91 | X | = | 2610653 455 |
| X | = | 2610653 455 | ÷ | 627 91 |
| = | 2610653 455 | × | 91 627 |
| = | 2610653 5 | × | 1 627 |
| X | = | 2610653 3135 |
| X | = | 832.744179 |