( | 3 | x | + | 5 | ) | ÷ | 2 | = | ( | 7 | x | − | 5 | ) | ÷ | 3 |
方程左边 = | 3 | x | × | 1 2 | + | 5 | × | 1 2 |
= | 3 2 | x | + | 5 2 |
3 2 | x | + | 5 2 | = | ( | 7 | x | − | 5 | ) | ÷ | 3 |
方程右边 = | 7 | x | × | 1 3 | − | 5 | × | 1 3 |
= | 7 3 | x | − | 5 3 |
3 2 | x | + | 5 2 | = | 7 3 | x | − | 5 3 |
3 2 | x | − | 7 3 | x | = | - | 5 3 | − | 5 2 |
- | 5 6 | x | = | - | 5 3 | − | 5 2 |
- | 5 6 | x | = | - | 25 6 |
25 6 | = | 5 6 | x |
5 6 | x | = | 25 6 |
x | = | 25 6 | ÷ | 5 6 |
= | 25 6 | × | 6 5 |
= | 5 | × | 1 |
x | = | 5 |