| 750 | ÷ | ( | 750 | + | X | ) | = | 17 100 |
| Multiply both sides of the equation by: | ( | 750 | + | X | ) |
| 750 | = | 17 100 | ( | 750 | + | X | ) |
| 750 | = | 17 100 | × | 750 | + | 17 100 | X |
| 750 | = | 255 2 | + | 17 100 | X |
| - | 17 100 | X | = | 255 2 | − | 750 |
| - | 17 100 | X | = | - | 1245 2 |
1245 2 | = | 17 100 | X |
17 100 | X | = | 1245 2 |
| X | = | 1245 2 | ÷ | 17 100 |
| = | 1245 2 | × | 100 17 |
| = | 1245 | × | 50 17 |
| X | = | 62250 17 |
| X | = | 3661.764706 |