| 6 | ( | 2 | x | − | 1 | ) | − | 3 | ( | 4 | x | − | 1 | ) | = | 4 | ( | 3 | x | − | 2 | ) | − | 1 |
| 方程左边 = | 6 | × | 2 | x | − | 6 | × | 1 | − | 3 | ( | 4 | x | − | 1 | ) |
| = | 12 | x | − | 6 | − | 3 | ( | 4 | x | − | 1 | ) |
| = | 12 | x | − | 6 | − | 3 | × | 4 | x | + | 3 | × | 1 |
| = | 12 | x | − | 6 | − | 12 | x | + | 3 |
| = | 0 | x | − | 3 |
| - | 3 | = | 4 | ( | 3 | x | − | 2 | ) | − | 1 |
| 方程右边 = | 4 | × | 3 | x | − | 4 | × | 2 | − | 1 |
| = | 12 | x | − | 8 | − | 1 |
| = | 12 | x | − | 9 |
| - | 3 | = | 12 | x | − | 9 |
| - | 12 | x | = | - | 9 | + | 3 |
| - | 12 | x | = | - | 6 |
| 6 | = | 12 | x |
| 12 | x | = | 6 |
| x | = | 6 | ÷ | 12 |
| = | 6 | × | 1 12 |
| = | 1 | × | 1 2 |
| x | = | 1 2 |
| x | = | 0.5 |