| ( | x | − | 1 | ) | ÷ | 2 | − | ( | x | − | 2 | ) | − | 1 | − | ( | x | − | 3 | ) | ÷ | 2 | = | 0 |
| x | ÷ | 2 | − | 1 | ÷ | 2 | − | ( | x | − | 2 | ) | − | 1 | − | ( | x | − | 3 | ) | ÷ | 2 | = | 0 |
| x | × | 1 2 | − | 1 2 | − | ( | x | − | 2 | ) | − | 1 | − | ( | x | − | 3 | ) | × | 1 2 | = | 0 |
1 2 | x | − | 3 2 | − | ( | x | − | 2 | ) | − | ( | x | − | 3 | ) | × | 1 2 | = | 0 |
1 2 | x | − | 3 2 | − | x | + | 2 | − | ( | x | − | 3 | ) | × | 1 2 | = | 0 |
| - | 1 2 | x | + | 1 2 | − | ( | x | − | 3 | ) | × | 1 2 | = | 0 |
| - | 1 2 | x | + | 1 2 | − | x | × | 1 2 | + | 3 | × | 1 2 | = | 0 |
| - | 1 2 | x | + | 1 2 | − | x | × | 1 2 | + | 3 2 | = | 0 |
| - | 1 | x | + | 2 | = | 0 |
| - | 1 | x | = | 0 | − | 2 |
| - | x | = | 0 | − | 2 |
| - | x | = | - | 2 |
| 2 | = | x |
| x | = | 2 |