| 1000 | ÷ | ( | 200 | + | x | ) | = | 2439 1000 |
| Multiply both sides of the equation by: | ( | 200 | + | x | ) |
| 1000 | = | 2439 1000 | ( | 200 | + | x | ) |
| 1000 | = | 2439 1000 | × | 200 | + | 2439 1000 | x |
| 1000 | = | 2439 5 | + | 2439 1000 | x |
| - | 2439 1000 | x | = | 2439 5 | − | 1000 |
| - | 2439 1000 | x | = | - | 2561 5 |
2561 5 | = | 2439 1000 | x |
2439 1000 | x | = | 2561 5 |
| x | = | 2561 5 | ÷ | 2439 1000 |
| = | 2561 5 | × | 1000 2439 |
| = | 2561 | × | 200 2439 |
| x | = | 512200 2439 |
| x | = | 210.0041 |