| ( | 51621 5 | − | x | ) | ÷ | x | = | 19 500 |
| Multiply both sides of the equation by: | x |
| ( | 51621 5 | − | x | ) | = | 19 500 | x |
51621 5 | − | x | = | 19 500 | x |
| - | x | − | 19 500 | x | = | - | 51621 5 |
| - | 519 500 | x | = | - | 51621 5 |
51621 5 | = | 519 500 | x |
519 500 | x | = | 51621 5 |
| x | = | 51621 5 | ÷ | 519 500 |
| = | 51621 5 | × | 500 519 |
| = | 17207 | × | 100 173 |
| x | = | 1720700 173 |
| x | = | 9946.242775 |