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