| 6 | x | = | ( | x | − | 5 2 | ) | ( | 6 | + | 4 | ) |
| 方程右边 = | x | ( | 6 | + | 4 | ) | − | 5 2 | ( | 6 | + | 4 | ) |
| = | x | × | 6 | + | x | × | 4 | − | 5 2 | ( | 6 | + | 4 | ) |
| = | 10 | x | − | 5 2 | ( | 6 | + | 4 | ) |
| = | 10 | x | − | 5 2 | × | 6 | − | 5 2 | × | 4 |
| = | 10 | x | − | 15 | − | 10 |
| = | 10 | x | − | 25 |
| 6 | x | = | 10 | x | − | 25 |
| 6 | x | − | 10 | x | = | - | 25 |
| - | 4 | x | = | - | 25 |
| 25 | = | 4 | x |
| 4 | x | = | 25 |
| x | = | 25 | ÷ | 4 |
| = | 25 | × | 1 4 |
| x | = | 25 4 |
| x | = | 6.25 |