| 6 | − | 2 | ( | x | − | 5 | ) | = | x | − | ( | x | − | 4 | ) |
| Left side of the equation = | 6 | − | 2 | x | + | 2 | × | 5 |
| = | 6 | − | 2 | x | + | 10 |
| = | 16 | − | 2 | x |
| 16 | − | 2 | x | = | x | − | ( | x | − | 4 | ) |
| Right side of the equation = | x | − | x | + | 4 |
| = | 0 | x | + | 4 |
| 16 | − | 2 | x | = | 4 |
| - | 2 | x | = | 4 | − | 16 |
| - | 2 | x | = | - | 12 |
| 12 | = | 2 | x |
| 2 | x | = | 12 |
| x | = | 12 | ÷ | 2 |
| = | 12 | × | 1 2 |
| = | 6 | × | 1 |
| x | = | 6 |