| 16000 | ÷ | ( | x | × | 2 | ) | = | 40000 | ÷ | ( | x | + | 10 | ) |
| Multiply both sides of the equation by: | ( | x | × | 2 | ) | , | ( | x | + | 10 | ) |
| 16000 | ( | x | + | 10 | ) | = | 40000 | ( | x | × | 2 | ) |
| 16000 | x | + | 16000 | × | 10 | = | 40000 | ( | x | × | 2 | ) |
| 16000 | x | + | 16000 | × | 10 | = | 40000 | x | × | 2 |
| 16000 | x | + | 160000 | = | 80000 | x |
| 16000 | x | − | 80000 | x | = | - | 160000 |
| - | 64000 | x | = | - | 160000 |
| 160000 | = | 64000 | x |
| 64000 | x | = | 160000 |
| x | = | 160000 | ÷ | 64000 |
| = | 160000 | × | 1 64000 |
| = | 5 | × | 1 2 |
| x | = | 5 2 |
| x | = | 2.5 |