| X | ( | ( | 37 100 | − | 2 | X | ) | ( | 37 100 | − | X | ) | + | 1 | ) | = | 9 125 |
| 方程左边 = | X | ( | 37 100 | − | 2 | X | ) | ( | 37 100 | − | X | ) | + | X | × | 1 |
| = | X | × | 37 100 | ( | 37 100 | − | X | ) | − | X | × | 2 | X | ( | 37 100 | − | X | ) | + | 1 | X |
| = | X | × | 37 100 | × | 37 100 | − | X | × | 37 100 | X | − | X | × | 2 | X | ( | 37 100 | − | X | ) | + | 1 | X |
| = | X | × | 1369 10000 | − | X | × | 37 100 | X | − | X | × | 2 | X | ( | 37 100 | − | X | ) | + | 1 | X |
| = | 11369 10000 | X | − | X | × | 37 100 | X | − | X | × | 2 | X | ( | 37 100 | − | X | ) |
| = | 11369 10000 | X | − | X | × | 37 100 | X | − | X | × | 2 | X | × | 37 100 | + | X | × | 2 | X |
| = | 11369 10000 | X | − | X | × | 37 100 | X | − | X | × | 37 50 | X | + | X | × | 2 | X | X |
11369 10000 | X | − | X | × | 37 100 | X | − | X | × | 37 50 | X | + | X | × | 2 | X | X | = | 9 125 |