| ( | 5 | ( | 306 | + | X | ) | + | 52 | + | 9 | + | 6 | + | 17 | ) | ÷ | ( | 306 | + | 13 | + | 3 | + | 3 | + | 17 | + | X | ) | = | 24 5 |
| Multiply both sides of the equation by: | ( | 306 | + | 13 | + | 3 | + | 3 | + | 17 | + | X | ) |
| ( | 5 | ( | 306 | + | X | ) | + | 52 | + | 9 | + | 6 | + | 17 | ) | = | 24 5 | ( | 306 | + | 13 | + | 3 | + | 3 | + | 17 | + | X | ) |
| 5 | ( | 306 | + | X | ) | + | 52 | + | 9 | + | 6 | + | 17 | = | 24 5 | ( | 306 | + | 13 | + | 3 | + | 3 | + | 17 | + | X | ) |
| 5 | ( | 306 | + | X | ) | + | 52 | + | 9 | + | 6 | + | 17 | = | 24 5 | × | 306 | + | 24 5 | × | 13 | + | 24 5 | × | 3 | + | 24 5 | × | 3 | + | 24 5 | × | 17 | + | 24 5 | X |
| 5 | ( | 306 | + | X | ) | + | 52 | + | 9 | + | 6 | + | 17 | = | 7344 5 | + | 312 5 | + | 72 5 | + | 72 5 | + | 408 5 | + | 24 5 | X |
| 5 | ( | 306 | + | X | ) | + | 84 | = | 8208 5 | + | 24 5 | X |
| 5 | × | 306 | + | 5 | X | + | 84 | = | 8208 5 | + | 24 5 | X |
| 1530 | + | 5 | X | + | 84 | = | 8208 5 | + | 24 5 | X |
| 1614 | + | 5 | X | = | 8208 5 | + | 24 5 | X |
| 5 | X | − | 24 5 | X | = | 8208 5 | − | 1614 |
1 5 | X | = | 8208 5 | − | 1614 |
1 5 | X | = | 138 5 |
| X | = | 138 5 | ÷ | 1 5 |
| = | 138 5 | × | 5 |
| = | 138 | × | 1 |
| X | = | 138 |