| ( | 11854 | − | X | ) | ÷ | X | = | 9 100 |
| Multiply both sides of the equation by: | X |
| ( | 11854 | − | X | ) | = | 9 100 | X |
| 11854 | − | X | = | 9 100 | X |
| - | X | − | 9 100 | X | = | - | 11854 |
| - | 109 100 | X | = | - | 11854 |
| 11854 | = | 109 100 | X |
109 100 | X | = | 11854 |
| X | = | 11854 | ÷ | 109 100 |
| = | 11854 | × | 100 109 |
| X | = | 1185400 109 |
| X | = | 10875.229358 |