| 110 | ÷ | ( | x | − | 280 | ) | = | 11 5 |
| Multiply both sides of the equation by: | ( | x | − | 280 | ) |
| 110 | = | 11 5 | ( | x | − | 280 | ) |
| 110 | = | 11 5 | x | − | 11 5 | × | 280 |
| 110 | = | 11 5 | x | − | 616 |
| - | 11 5 | x | = | - | 616 | − | 110 |
| - | 11 5 | x | = | - | 726 |
| 726 | = | 11 5 | x |
11 5 | x | = | 726 |
| x | = | 726 | ÷ | 11 5 |
| = | 726 | × | 5 11 |
| = | 66 | × | 5 |
| x | = | 330 |