1 2 | x | + | 45 | − | ( | 1 2 | x | + | 45 | ) | × | 3 4 | = | ( | 1 2 | x | + | 45 | ) | × | 1 4 |
| Left side of the equation = | 1 2 | x | + | 45 | − | 1 2 | x | × | 3 4 | − | 45 | × | 3 4 |
| = | 1 2 | x | + | 45 | − | 3 8 | x | − | 135 4 |
| = | 1 8 | x | + | 45 4 |
1 8 | x | + | 45 4 | = | ( | 1 2 | x | + | 45 | ) | × | 1 4 |
| Right side of the equation = | 1 2 | x | × | 1 4 | + | 45 | × | 1 4 |
| = | 1 8 | x | + | 45 4 |
1 8 | x | + | 45 4 | = | 1 8 | x | + | 45 4 |
1 8 | x | − | 1 8 | x | = | 45 4 | − | 45 4 |
| 0 | x | = | 45 4 | − | 45 4 |
| 0 | x | = | 0 |