| 2 | ( | ( | 2 | ( | x | + | 11 | ) | + | 6 | ) | + | 16 | ) | + | 5 | = | 61 |
| Left side of the equation = | 2 | ( | 2 | ( | x | + | 11 | ) | + | 6 | ) | + | 2 | × | 16 | + | 5 |
| = | 2 | ( | 2 | ( | x | + | 11 | ) | + | 6 | ) | + | 32 | + | 5 |
| = | 2 | ( | 2 | ( | x | + | 11 | ) | + | 6 | ) | + | 37 |
| = | 2 | × | 2 | ( | x | + | 11 | ) | + | 2 | × | 6 | + | 37 |
| = | 4 | ( | x | + | 11 | ) | + | 12 | + | 37 |
| = | 4 | ( | x | + | 11 | ) | + | 49 |
| = | 4 | x | + | 4 | × | 11 | + | 49 |
| = | 4 | x | + | 44 | + | 49 |
| = | 4 | x | + | 93 |
| 4 | x | + | 93 | = | 61 |
| 4 | x | = | 61 | − | 93 |
| 4 | x | = | - | 32 |
| x | = | - | 32 | ÷ | 4 |
| = | - | 32 | × | 1 4 |
| = | - | 8 | × | 1 |
| x | = | - | 8 |