| x | − | x | × | 653 10000 | − | ( | x | − | 20778513 25 | × | 3 10000 | ) | = | 20778513 25 |
| 方程左边 = | 9347 10000 | x | − | ( | x | − | 20778513 25 | × | 3 10000 | ) |
9347 10000 | x | − | ( | x | − | 20778513 25 | × | 3 10000 | ) | = | 20778513 25 |
| 方程左边 = | 9347 10000 | x | − | x | + | 20778513 25 | × | 3 10000 |
| = | 9347 10000 | x | − | x | + | 62335539 250000 |
| = | - | 653 10000 | x | + | 62335539 250000 |
| - | 653 10000 | x | + | 62335539 250000 | = | 20778513 25 |
| - | 653 10000 | x | = | 20778513 25 | − | 62335539 250000 |