( | 11 | ÷ | 7 | ) | x | = | 11 | ÷ | 7 |
方程左边 = | 11 | ÷ | 7 | × | x |
= | 11 7 | x |
11 7 | x | = | 11 | ÷ | 7 |
方程右边 = | 11 7 |
11 7 | x | = | 11 7 |
x | = | 11 7 | ÷ | 11 7 |
= | 11 7 | × | 7 11 |
= | 1 | × | 1 |
x | = | 1 |
2 | x | = | 3 | x | − | 5 |
2 | x | − | 3 | x | = | - | 5 |
- | x | = | - | 5 |
- | x | = | - | 5 |
5 | = | x |
x | = | 5 |
( | 3 | ÷ | 4 | ) | x | = | 9 |
方程左边 = | 3 | ÷ | 4 | × | x |
= | 3 4 | x |
3 4 | x | = | 9 |
x | = | 9 | ÷ | 3 4 |
= | 9 | × | 4 3 |
= | 3 | × | 4 |
x | = | 12 |