| ( | x | − | 5 | ÷ | 12 | ) | ( | x | − | 1 5 | ) | − | 5 | ÷ | 12 | = | 0 |
| Left side of the equation = | ( | x | − | 5 | ÷ | 12 | ) | ( | x | − | 1 5 | ) | − | 5 12 |
| ( | x | − | 5 | ÷ | 12 | ) | ( | x | − | 1 5 | ) | − | 5 12 | = | 0 |
| Left side of the equation = | x | ( | x | − | 1 5 | ) | − | 5 | ÷ | 12 | × | ( | x | − | 1 5 | ) | − | 5 12 |
| = | x | ( | x | − | 1 5 | ) | − | 5 12 | ( | x | − | 1 5 | ) | − | 5 12 |
| = | x | x | − | x | × | 1 5 | − | 5 12 | ( | x | − | 1 5 | ) | − | 5 12 |
| = | x | x | − | 1 5 | x | − | 5 12 | x | + | 5 12 | × | 1 5 | − | 5 12 |
| = | x | x | − | 1 5 | x | − | 5 12 | x | + | 1 12 | − | 5 12 |
| = | x | x | − | 37 60 | x | − | 1 3 |
| x | x | − | 37 60 | x | − | 1 3 | = | 0 |