| 3200 | ( | 175 | − | x | ) | = | 2400 | x |
| Left side of the equation = | 3200 | × | 175 | − | 3200 | x |
| = | 560000 | − | 3200 | x |
| 560000 | − | 3200 | x | = | 2400 | x |
| - | 3200 | x | − | 2400 | x | = | - | 560000 |
| - | 5600 | x | = | - | 560000 |
| 560000 | = | 5600 | x |
| 5600 | x | = | 560000 |
| x | = | 560000 | ÷ | 5600 |
| = | 560000 | × | 1 5600 |
| = | 100 | × | 1 |
| x | = | 100 |