( | 2 | x | - | 1 | ) | ÷ | 3 | = | ( | x | + | 2 | ) | ÷ | 4 | - | 1 |
方程左边 = | 2 | x | × | 1 3 | - | 1 | × | 1 3 |
= | 2 3 | x | - | 1 3 |
2 3 | x | - | 1 3 | = | ( | x | + | 2 | ) | ÷ | 4 | - | 1 |
方程右边 = | x | × | 1 4 | + | 2 | × | 1 4 | - | 1 |
= | x | × | 1 4 | + | 1 2 | - | 1 |
= | 1 4 | x | - | 1 2 |
2 3 | x | - | 1 3 | = | 1 4 | x | - | 1 2 |
2 3 | x | - | 1 4 | x | = | - | 1 2 | + | 1 3 |
5 12 | x | = | - | 1 2 | + | 1 3 |
5 12 | x | = | - | 1 6 |
x | = | - | 1 6 | ÷ | 5 12 |
= | - | 1 6 | × | 12 5 |
= | - | 1 | × | 2 5 |
x | = | - | 2 5 |
x | = | - 0.4 |