( | x | − | 1 | ) | ÷ | 7 | = | ( | x | − | 3 | ) | ÷ | 5 |
方程左边 = | x | × | 1 7 | − | 1 | × | 1 7 |
= | x | × | 1 7 | − | 1 7 |
1 7 | x | − | 1 7 | = | ( | x | − | 3 | ) | ÷ | 5 |
方程右边 = | x | × | 1 5 | − | 3 | × | 1 5 |
= | x | × | 1 5 | − | 3 5 |
1 7 | x | − | 1 7 | = | 1 5 | x | − | 3 5 |
1 7 | x | − | 1 5 | x | = | - | 3 5 | + | 1 7 |
- | 2 35 | x | = | - | 3 5 | + | 1 7 |
- | 2 35 | x | = | - | 16 35 |
16 35 | = | 2 35 | x |
2 35 | x | = | 16 35 |
x | = | 16 35 | ÷ | 2 35 |
= | 16 35 | × | 35 2 |
= | 8 | × | 1 |
x | = | 8 |