| ( | 21832 | − | x | ) | ÷ | x | = | 77 100 |
| Multiply both sides of the equation by: | x |
| ( | 21832 | − | x | ) | = | 77 100 | x |
| 21832 | − | x | = | 77 100 | x |
| - | x | − | 77 100 | x | = | - | 21832 |
| - | 177 100 | x | = | - | 21832 |
| 21832 | = | 177 100 | x |
177 100 | x | = | 21832 |
| x | = | 21832 | ÷ | 177 100 |
| = | 21832 | × | 100 177 |
| x | = | 2183200 177 |
| x | = | 12334.463277 |