| 100 | = | 100000 | x | ÷ | ( | 1000 | + | x | ) |
| Multiply both sides of the equation by: | ( | 1000 | + | x | ) |
| 100 | ( | 1000 | + | x | ) | = | 100000 | x |
| 100 | × | 1000 | + | 100 | x | = | 100000 | x |
| 100000 | + | 100 | x | = | 100000 | x |
| 100 | x | − | 100000 | x | = | - | 100000 |
| - | 99900 | x | = | - | 100000 |
| 100000 | = | 99900 | x |
| 99900 | x | = | 100000 |
| x | = | 100000 | ÷ | 99900 |
| = | 100000 | × | 1 99900 |
| = | 1000 | × | 1 999 |
| x | = | 1000 999 |
| x | = | 1.001001 |