1 | + | ( | x | − | 3 | ) | ÷ | 3 | = | ( | 3 | x | + | 2 | ) | ÷ | 4 |
方程左边 = | 1 | + | x | × | 1 3 | − | 3 | × | 1 3 |
= | 1 | + | x | × | 1 3 | − | 1 |
= | 0 | + | 1 3 | x |
1 3 | x | = | ( | 3 | x | + | 2 | ) | ÷ | 4 |
方程右边 = | 3 | x | × | 1 4 | + | 2 | × | 1 4 |
= | 3 4 | x | + | 1 2 |
1 3 | x | = | 3 4 | x | + | 1 2 |
1 3 | x | − | 3 4 | x | = | 1 2 |
- | 5 12 | x | = | 1 2 |
- | 1 2 | = | 5 12 | x |
5 12 | x | = | - | 1 2 |
x | = | - | 1 2 | ÷ | 5 12 |
= | - | 1 2 | × | 12 5 |
= | - | 1 | × | 6 5 |
x | = | - | 6 5 |
x | = | - 1.2 |