| ( | x | × | 1 20 | ) | ÷ | ( | 1 | − | x | × | 1 20 | ) | = | 1 10 |
| Multiply both sides of the equation by: | ( | 1 | − | x | × | 1 20 | ) |
| ( | x | × | 1 20 | ) | = | 1 10 | ( | 1 | − | x | × | 1 20 | ) |
| x | × | 1 20 | = | 1 10 | ( | 1 | − | x | × | 1 20 | ) |
| x | × | 1 20 | = | 1 10 | × | 1 | − | 1 10 | x | × | 1 20 |
| x | × | 1 20 | = | 1 10 | − | 1 200 | x |
1 20 | x | + | 1 200 | x | = | 1 10 |
11 200 | x | = | 1 10 |
| x | = | 1 10 | ÷ | 11 200 |
| = | 1 10 | × | 200 11 |
| = | 1 | × | 20 11 |
| x | = | 20 11 |
| x | = | 1.818182 |