56 | − | 580 | − | 400 | − | ( | 56 | x | × | 13 100 | − | 5 | x | ) | × | 12 100 | = | 0 |
方程左边 = | - | 924 | − | ( | 56 | x | × | 13 100 | − | 5 | x | ) | × | 12 100 |
- | 924 | − | ( | 56 | x | × | 13 100 | − | 5 | x | ) | × | 12 100 | = | 0 |
方程左边 = | - | 924 | − | 56 | x | × | 13 100 | × | 12 100 | + | 5 | x | × | 12 100 |
= | - | 924 | − | 546 625 | x | + | 3 5 | x |
= | - | 924 | − | 171 625 | x |
- | 924 | − | 171 625 | x | = | 0 |
- | 171 625 | x | = | 0 | + | 924 |
- | 171 625 | x | = | 924 |
- | 924 | = | 171 625 | x |
171 625 | x | = | - | 924 |
x | = | - | 924 | ÷ | 171 625 |
= | - | 924 | × | 625 171 |
= | - | 308 | × | 625 57 |
x | = | - | 192500 57 |
x | = | - 3377.192982 |