| ( | 3040 | − | x | ) | + | ( | 6560 | − | x | ) | + | 2 | x | × | 157 50 | ÷ | 4 | = | 9600 |
| Left side of the equation = | ( | 3040 | − | x | ) | + | ( | 6560 | − | x | ) | + | 157 100 | x |
| ( | 3040 | − | x | ) | + | ( | 6560 | − | x | ) | + | 157 100 | x | = | 9600 |
| Left side of the equation = | 3040 | − | x | + | ( | 6560 | − | x | ) | + | 157 100 | x |
| = | 3040 | + | 57 100 | x | + | ( | 6560 | − | x | ) |
| = | 3040 | + | 57 100 | x | + | 6560 | − | x |
| = | 9600 | − | 43 100 | x |
| 9600 | − | 43 100 | x | = | 9600 |
| - | 43 100 | x | = | 9600 | − | 9600 |
| - | 43 100 | x | = | 0 |
| - | 0 | = | 43 100 | x |
43 100 | x | = | - | 0 |
| x | = | - | 0 | ÷ | 43 100 |
| = | - | 0 | × | 100 43 |
| x | = | 0 |