| ( | 168 | ÷ | 3 | ) | x | − | 76 | x | − | 24 5 | = | 0 |
| Left side of the equation = | 168 | ÷ | 3 | × | x | − | 76 | x | − | 24 5 |
| = | 56 | x | − | 76 | x | − | 24 5 |
| = | - | 20 | x | − | 24 5 |
| - | 20 | x | − | 24 5 | = | 0 |
| - | 20 | x | = | 0 | + | 24 5 |
| - | 20 | x | = | 24 5 |
| - | 24 5 | = | 20 | x |
| 20 | x | = | - | 24 5 |
| x | = | - | 24 5 | ÷ | 20 |
| = | - | 24 5 | × | 1 20 |
| = | - | 6 5 | × | 1 5 |
| x | = | - | 6 25 |
| x | = | - 0.24 |