2507 100000 | ( | 73 | − | x | ) | x | × | 306 5 | = | 185283 250 |
方程左边 = | 383571 250000 | ( | 73 | − | x | ) | x |
383571 250000 | ( | 73 | − | x | ) | x | = | 185283 250 |
方程左边 = | 383571 250000 | × | 73 | x | − | 383571 250000 | x | x |
= | 28000683 250000 | x | − | 383571 250000 | x | x |
28000683 250000 | x | − | 383571 250000 | x | x | = | 185283 250 |