| 5000000 | − | 500000 | ÷ | ( | 4000 | − | x | ) | = | 8000000 | ÷ | 4000 |
| Multiply both sides of the equation by: | ( | 4000 | − | x | ) |
| 5000000 | ( | 4000 | − | x | ) | − | 500000 | = | 8000000 | ÷ | 4000 | × | ( | 4000 | − | x | ) |
| 5000000 | × | 4000 | − | 5000000 | x | − | 500000 | = | 8000000 | ÷ | 4000 | × | ( | 4000 | − | x | ) |
| 5000000 | × | 4000 | − | 5000000 | x | − | 500000 | = | 8000000 | ÷ | 4000 | × | 4000 | − | 8000000 | ÷ | 4000 | × | x |