| 55 | ÷ | ( | 3 | + | x | ÷ | 27 | ) | = | 11 |
| Multiply both sides of the equation by: | ( | 3 | + | x | ÷ | 27 | ) |
| 55 | = | 11 | ( | 3 | + | x | ÷ | 27 | ) |
| 55 | = | 11 | × | 3 | + | 11 | x | ÷ | 27 |
| 55 | = | 33 | + | 11 27 | x |
| - | 11 27 | x | = | 33 | − | 55 |
| - | 11 27 | x | = | - | 22 |
| 22 | = | 11 27 | x |
11 27 | x | = | 22 |
| x | = | 22 | ÷ | 11 27 |
| = | 22 | × | 27 11 |
| = | 2 | × | 27 |
| x | = | 54 |