| 5 | X | − | 6 | × | 1 | ÷ | 4 | × | ( | 16 | − | 3 | X | ) | = | 33 |
| Left side of the equation = | 5 | X | − | 3 2 | ( | 16 | − | 3 | X | ) |
| 5 | X | − | 3 2 | ( | 16 | − | 3 | X | ) | = | 33 |
| Left side of the equation = | 5 | X | − | 3 2 | × | 16 | + | 3 2 | × | 3 | X |
| = | 5 | X | − | 24 | + | 9 2 | X |
| = | 19 2 | X | − | 24 |
19 2 | X | − | 24 | = | 33 |
19 2 | X | = | 33 | + | 24 |
19 2 | X | = | 57 |
| X | = | 57 | ÷ | 19 2 |
| = | 57 | × | 2 19 |
| = | 3 | × | 2 |
| X | = | 6 |