100 | × | 137 10 | + | x | × | 22 | = | ( | 100 | + | x | ) | × | 25 |
方程左边 = | 1370 | + | x | × | 22 |
1370 | + | 22 | x | = | ( | 100 | + | x | ) | × | 25 |
方程右边 = | 100 | × | 25 | + | x | × | 25 |
= | 2500 | + | x | × | 25 |
1370 | + | 22 | x | = | 2500 | + | 25 | x |
22 | x | − | 25 | x | = | 2500 | − | 1370 |
- | 3 | x | = | 2500 | − | 1370 |
- | 3 | x | = | 1130 |
- | 1130 | = | 3 | x |
3 | x | = | - | 1130 |
x | = | - | 1130 | ÷ | 3 |
= | - | 1130 | × | 1 3 |
x | = | - | 1130 3 |
x | = | - 376.666667 |