| 1800 | ÷ | x | − | 759 500 | ÷ | x | = | 20 |
| Multiply both sides of the equation by: | x |
| 1800 | − | 759 500 | ÷ | 1 | × | 1 | = | 20 | x |
| - | 20 | x | = | - | 1800 | + | 759 500 | ÷ | 1 | × | 1 |
| - | 20 | x | = | - | 1800 | + | 759 500 |
| - | 20 | x | = | - | 899241 500 |
899241 500 | = | 20 | x |
| 20 | x | = | 899241 500 |
| x | = | 899241 500 | ÷ | 20 |
| = | 899241 500 | × | 1 20 |
| x | = | 899241 10000 |
| x | = | 89.9241 |