X | − | 14463 25 | ( | X | − | 14463 25 | − | 15000 | ) | × | 3 100 | = | 2296369 50 |
方程左边 = | X | − | 43389 2500 | ( | X | − | 14463 25 | − | 15000 | ) |
X | − | 43389 2500 | ( | X | − | 14463 25 | − | 15000 | ) | = | 2296369 50 |
方程左边 = | X | − | 43389 2500 | X | + | 43389 2500 | × | 14463 25 | + | 43389 2500 | × | 15000 |
= | X | − | 43389 2500 | X | + | 627535107 62500 | + | 260334 |