1 | × | 174 | + | x | × | 80 | = | ( | 1 | + | x | ) | × | 160 |
方程左边 = | 174 | + | x | × | 80 |
174 | + | 80 | x | = | ( | 1 | + | x | ) | × | 160 |
方程右边 = | 1 | × | 160 | + | x | × | 160 |
= | 160 | + | x | × | 160 |
174 | + | 80 | x | = | 160 | + | 160 | x |
80 | x | − | 160 | x | = | 160 | − | 174 |
- | 80 | x | = | 160 | − | 174 |
- | 80 | x | = | - | 14 |
14 | = | 80 | x |
80 | x | = | 14 |
x | = | 14 | ÷ | 80 |
= | 14 | × | 1 80 |
= | 7 | × | 1 40 |
x | = | 7 40 |
x | = | 0.175 |