4 | x | − | 400 | ÷ | 3 | × | x | − | 450 | = | 8 | ÷ | 5 |
方程左边 = | 4 | x | − | 400 3 | x | − | 450 |
= | - | 388 3 | x | − | 450 |
- | 388 3 | x | − | 450 | = | 8 | ÷ | 5 |
方程右边 = | 8 5 |
- | 388 3 | x | − | 450 | = | 8 5 |
- | 388 3 | x | = | 8 5 | + | 450 |
- | 388 3 | x | = | 2258 5 |
- | 2258 5 | = | 388 3 | x |
388 3 | x | = | - | 2258 5 |
x | = | - | 2258 5 | ÷ | 388 3 |
= | - | 2258 5 | × | 3 388 |
= | - | 1129 5 | × | 3 194 |
x | = | - | 3387 970 |
x | = | - 3.491753 |