100 | × | 22 | + | 100 | × | 102 5 | + | x | × | 82 | = | ( | 200 | x | ) | × | 25 |
方程左边 = | 2200 | + | 2040 | + | x | × | 82 |
= | 4240 | + | 82 | x |
4240 | + | 82 | x | = | ( | 200 | x | ) | × | 25 |
方程右边 = | 200 | x | × | 25 |
= | 5000 | x |
4240 | + | 82 | x | = | 5000 | x |
82 | x | − | 5000 | x | = | - | 4240 |
- | 4918 | x | = | - | 4240 |
4240 | = | 4918 | x |
4918 | x | = | 4240 |
x | = | 4240 | ÷ | 4918 |
= | 4240 | × | 1 4918 |
= | 2120 | × | 1 2459 |
x | = | 2120 2459 |
x | = | 0.862139 |