| 75 | x | ÷ | ( | 75 | + | 100 | x | ) | = | 53 100 |
| Multiply both sides of the equation by: | ( | 75 | + | 100 | x | ) |
| 75 | x | = | 53 100 | ( | 75 | + | 100 | x | ) |
| 75 | x | = | 53 100 | × | 75 | + | 53 100 | × | 100 | x |
| 75 | x | = | 159 4 | + | 53 | x |
| 75 | x | − | 53 | x | = | 159 4 |
| 22 | x | = | 159 4 |
| x | = | 159 4 | ÷ | 22 |
| = | 159 4 | × | 1 22 |
| x | = | 159 88 |
| x | = | 1.806818 |