699029 2 | = | ( | X | ÷ | 113 100 | × | 13 100 | ) | − | ( | X | ÷ | 109 100 | × | 9 100 | ) |
| 方程右边 = | X | ÷ | 113 100 | × | 13 100 | − | ( | X | ÷ | 109 100 | × | 9 100 | ) |
| = | X | × | 13 113 | − | ( | X | ÷ | 109 100 | × | 9 100 | ) |
| = | 13 113 | X | − | X | ÷ | 109 100 | × | 9 100 |
| = | 13 113 | X | − | X | × | 9 109 |
| = | 400 12317 | X |
699029 2 | = | 400 12317 | X |
400 12317 | X | = | 699029 2 |
| X | = | 699029 2 | ÷ | 400 12317 |
| = | 699029 2 | × | 12317 400 |
| X | = | 8609940193 800 |
| X | = | 10762425.241250001 |