3800 | x | − | 5000 | ( | 1 | + | x | ) | × | 8 100 | × | 50 100 | = | 0 |
方程左边 = | 3800 | x | − | 200 | ( | 1 | + | x | ) |
3800 | x | − | 200 | ( | 1 | + | x | ) | = | 0 |
方程左边 = | 3800 | x | − | 200 | × | 1 | − | 200 | x |
= | 3800 | x | − | 200 | − | 200 | x |
= | 3600 | x | − | 200 |
3600 | x | − | 200 | = | 0 |
3600 | x | = | 0 | + | 200 |
3600 | x | = | 200 |
x | = | 200 | ÷ | 3600 |
= | 200 | × | 1 3600 |
= | 1 | × | 1 18 |
x | = | 1 18 |
x | = | 0.055556 |