3 | ÷ | 8 | × | x | + | 1 | ÷ | 4 | = | x | − | 1 | ÷ | 7 |
方程左边 = | 3 8 | x | + | 1 4 |
3 8 | x | + | 1 4 | = | x | − | 1 | ÷ | 7 |
方程右边 = | x | − | 1 7 |
3 8 | x | + | 1 4 | = | x | − | 1 7 |
3 8 | x | − | x | = | - | 1 7 | − | 1 4 |
- | 5 8 | x | = | - | 1 7 | − | 1 4 |
- | 5 8 | x | = | - | 11 28 |
11 28 | = | 5 8 | x |
5 8 | x | = | 11 28 |
x | = | 11 28 | ÷ | 5 8 |
= | 11 28 | × | 8 5 |
= | 11 7 | × | 2 5 |
x | = | 22 35 |
x | = | 0.628571 |