| 194579 | ( | 1107 50000 | + | 13309 500 | x | ) | ( | 98893 100000 | − | 13309 1000 | x | ) | = | 11650 |
| 方程左边 = | 194579 | × | 1107 50000 | ( | 98893 100000 | − | 13309 1000 | x | ) | + | 194579 | × | 13309 500 | x | ( | 98893 100000 | − | 13309 1000 | x | ) |
| = | 215398953 50000 | ( | 98893 100000 | − | 13309 1000 | x | ) | + | 2589651911 500 | x | ( | 98893 100000 | − | 13309 1000 | x | ) |
| = | 215398953 50000 | × | 98893 100000 | − | 215398953 50000 | × | 13309 1000 | x | + | 2589651911 500 | x | ( | 98893 100000 | − | 13309 1000 | x | ) |