| 180 | ÷ | ( | x | + | 25 | ) | + | 900 | ÷ | 3 | × | x | = | 1700 |
| Multiply both sides of the equation by: | ( | x | + | 25 | ) |
| 180 | + | 900 | ÷ | 3 | × | x | ( | x | + | 25 | ) | = | 1700 | ( | x | + | 25 | ) |
| 180 | + | 900 | ÷ | 3 | × | x | x | + | 900 | ÷ | 3 | × | x | × | 25 | = | 1700 | ( | x | + | 25 | ) |
| 180 | + | 900 | ÷ | 3 | × | x | x | + | 900 | ÷ | 3 | × | x | × | 25 | = | 1700 | x | + | 1700 | × | 25 |
| 180 | + | 300 | x | x | + | 7500 | x | = | 1700 | x | + | 42500 |