| 430 | = | ( | 8000 | + | x | ) | ÷ | ( | 8000 | ÷ | 650 | + | x | ÷ | 430 | ) |
| Multiply both sides of the equation by: | ( | 8000 | ÷ | 650 | + | x | ÷ | 430 | ) |
| 430 | ( | 8000 | ÷ | 650 | + | x | ÷ | 430 | ) | = | ( | 8000 | + | x | ) |
| 430 | × | 8000 | ÷ | 650 | + | 430 | x | ÷ | 430 | = | ( | 8000 | + | x | ) |
| 430 | × | 8000 | ÷ | 650 | + | 430 | x | ÷ | 430 | = | 8000 | + | x |
68800 13 | + | 1 | x | = | 8000 | + | x |
| 1 | x | − | x | = | 8000 | − | 68800 13 |
| 0 | x | = | 8000 | − | 68800 13 |
| 0 | x | = | 35200 13 |