| ( | 4 | + | 5 | X | ) | ÷ | ( | ( | X | + | 1 | ) | ) | = | 24 5 |
| Multiply both sides of the equation by: | ( | ( | X | + | 1 | ) | ) |
| ( | 4 | + | 5 | X | ) | = | 24 5 | ( | ( | X | + | 1 | ) | ) |
| 4 | + | 5 | X | = | 24 5 | ( | ( | X | + | 1 | ) | ) |
| 4 | + | 5 | X | = | 24 5 | ( | X | + | 1 | ) |
| 4 | + | 5 | X | = | 24 5 | X | + | 24 5 | × | 1 |
| 4 | + | 5 | X | = | 24 5 | X | + | 24 5 |
| 5 | X | − | 24 5 | X | = | 24 5 | − | 4 |
1 5 | X | = | 24 5 | − | 4 |
1 5 | X | = | 4 5 |
| X | = | 4 5 | ÷ | 1 5 |
| = | 4 5 | × | 5 |
| = | 4 | × | 1 |
| X | = | 4 |