| ( | x | ÷ | 5 | ) | − | ( | x | ÷ | 4 | ) | = | ( | 1 | ÷ | 4 | ) |
| Left side of the equation = | x | ÷ | 5 | − | ( | x | ÷ | 4 | ) |
| = | 1 5 | x | − | x | ÷ | 4 |
| = | - | 1 20 | x |
| - | 1 20 | x | = | ( | 1 | ÷ | 4 | ) |
| Right side of the equation = | 1 | ÷ | 4 |
| = | 1 4 |
| - | 1 20 | x | = | 1 4 |
| - | 1 4 | = | 1 20 | x |
1 20 | x | = | - | 1 4 |
| x | = | - | 1 4 | ÷ | 1 20 |
| = | - | 1 4 | × | 20 |
| = | - | 1 | × | 5 |
| x | = | - | 5 |