| ( | 5 | − | x | ) | ( | 8 | + | 2500 | ÷ | x | ) | = | 48 |
| 5 | ( | 8 | + | 2500 | ÷ | x | ) | − | x | ( | 8 | + | 2500 | ÷ | x | ) | = | 48 |
| 5 | × | 8 | + | 5 | × | 2500 | ÷ | x | − | x | ( | 8 | + | 2500 | ÷ | x | ) | = | 48 |
| 40 | + | 12500 | ÷ | x | − | x | ( | 8 | + | 2500 | ÷ | x | ) | = | 48 |
| Multiply both sides of the equation by: | x |
| 40 | x | + | 12500 | − | x | ( | 8 | + | 2500 | ÷ | x | ) | x | = | 48 | x |
| 40 | x | + | 12500 | − | x | × | 8 | x | − | x | × | 2500 | ÷ | x | × | x | = | 48 | x |