| ( | 500 | − | X | ) | ÷ | X | = | - | 47 500 |
| Multiply both sides of the equation by: | X |
| ( | 500 | − | X | ) | = | - | 47 500 | X |
| 500 | − | X | = | - | 47 500 | X |
| - | X | + | 47 500 | X | = | - | 500 |
| - | 453 500 | X | = | - | 500 |
| 500 | = | 453 500 | X |
453 500 | X | = | 500 |
| X | = | 500 | ÷ | 453 500 |
| = | 500 | × | 500 453 |
| X | = | 250000 453 |
| X | = | 551.87638 |