| ( | 17200 | + | 23 5 | X | ) | ÷ | ( | 3936 | + | X | ) | = | 23 5 |
| Multiply both sides of the equation by: | ( | 3936 | + | X | ) |
| ( | 17200 | + | 23 5 | X | ) | = | 23 5 | ( | 3936 | + | X | ) |
| 17200 | + | 23 5 | X | = | 23 5 | ( | 3936 | + | X | ) |
| 17200 | + | 23 5 | X | = | 23 5 | × | 3936 | + | 23 5 | X |
| 17200 | + | 23 5 | X | = | 90528 5 | + | 23 5 | X |
23 5 | X | − | 23 5 | X | = | 90528 5 | − | 17200 |
| 0 | X | = | 90528 5 | − | 17200 |
| 0 | X | = | 4528 5 |