| x | ÷ | ( | x | + | 4500 | ) | = | 1 | ÷ | 200 |
| Multiply both sides of the equation by: | ( | x | + | 4500 | ) |
| x | = | 1 | ÷ | 200 | × | ( | x | + | 4500 | ) |
| x | = | 1 | ÷ | 200 | × | x | + | 1 | ÷ | 200 | × | 4500 |
| x | = | 1 200 | x | + | 45 2 |
| x | − | 1 200 | x | = | 45 2 |
199 200 | x | = | 45 2 |
| x | = | 45 2 | ÷ | 199 200 |
| = | 45 2 | × | 200 199 |
| = | 45 | × | 100 199 |
| x | = | 4500 199 |
| x | = | 22.613065 |