| ( | x | − | 36 | ) | ÷ | 2 | = | ( | x | + | 36 | ) | ÷ | 4 |
| Left side of the equation = | x | × | 1 2 | − | 36 | × | 1 2 |
| = | x | × | 1 2 | − | 18 |
1 2 | x | − | 18 | = | ( | x | + | 36 | ) | ÷ | 4 |
| Right side of the equation = | x | × | 1 4 | + | 36 | × | 1 4 |
| = | x | × | 1 4 | + | 9 |
1 2 | x | − | 18 | = | 1 4 | x | + | 9 |
1 2 | x | − | 1 4 | x | = | 9 | + | 18 |
1 4 | x | = | 9 | + | 18 |
1 4 | x | = | 27 |
| x | = | 27 | ÷ | 1 4 |
| = | 27 | × | 4 |
| x | = | 108 |