| 6 | − | 3 | ( | 6 | − | x | ) | = | 2 | ( | 3 2 | − | 2 | x | ) |
| 方程左边 = | 6 | − | 3 | × | 6 | + | 3 | x |
| = | 6 | − | 18 | + | 3 | x |
| = | - | 12 | + | 3 | x |
| - | 12 | + | 3 | x | = | 2 | ( | 3 2 | − | 2 | x | ) |
| 方程右边 = | 2 | × | 3 2 | − | 2 | × | 2 | x |
| = | 3 | − | 4 | x |
| - | 12 | + | 3 | x | = | 3 | − | 4 | x |
| 3 | x | + | 4 | x | = | 3 | + | 12 |
| 7 | x | = | 3 | + | 12 |
| 7 | x | = | 15 |
| x | = | 15 | ÷ | 7 |
| = | 15 | × | 1 7 |
| x | = | 15 7 |
| x | = | 2.142857 |