4 5 | x | − | 64 | ÷ | 1600 | = | 4 5 | x | − | 256 | ÷ | 1200 |
| Left side of the equation = | 4 5 | x | − | 1 25 |
4 5 | x | − | 1 25 | = | 4 5 | x | − | 256 | ÷ | 1200 |
| Right side of the equation = | 4 5 | x | − | 16 75 |
4 5 | x | − | 1 25 | = | 4 5 | x | − | 16 75 |
4 5 | x | − | 4 5 | x | = | - | 16 75 | + | 1 25 |
| 0 | x | = | - | 16 75 | + | 1 25 |
| 0 | x | = | - | 13 75 |