| 1 | ÷ | 5 | × | X | + | 24 | = | ( | 1 | − | 2 | ÷ | 3 | ) | X |
| Left side of the equation = | 1 5 | X | + | 24 |
1 5 | X | + | 24 | = | ( | 1 | − | 2 | ÷ | 3 | ) | X |
| Right side of the equation = | 1 | X | − | 2 | ÷ | 3 | × | X |
| = | 1 | X | − | 2 3 | X |
| = | 1 3 | X |
1 5 | X | + | 24 | = | 1 3 | X |
1 5 | X | − | 1 3 | X | = | - | 24 |
| - | 2 15 | X | = | - | 24 |
| 24 | = | 2 15 | X |
2 15 | X | = | 24 |
| X | = | 24 | ÷ | 2 15 |
| = | 24 | × | 15 2 |
| = | 12 | × | 15 |
| X | = | 180 |