0 | = | 900 | x | − | 120 | x | − | ( | 12000000 | + | 560 | x | ) |
方程右边 = | 780 | x | − | ( | 12000000 | + | 560 | x | ) |
0 | = | 780 | x | − | ( | 12000000 | + | 560 | x | ) |
方程右边 = | 780 | x | − | 12000000 | − | 560 | x |
= | 220 | x | − | 12000000 |
0 | = | 220 | x | − | 12000000 |
- | 220 | x | = | - | 12000000 | − | 0 |
- | 220 | x | = | - | 12000000 |
12000000 | = | 220 | x |
220 | x | = | 12000000 |
x | = | 12000000 | ÷ | 220 |
= | 12000000 | × | 1 220 |
= | 600000 | × | 1 11 |
x | = | 600000 11 |
x | = | 54545.454545 |