3 10 | x | + | 1 4 | ( | 960 | − | x | ) | = | 1288 | − | 960 |
| Left side of the equation = | 3 10 | x | + | 1 4 | × | 960 | − | 1 4 | x |
| = | 3 10 | x | + | 240 | − | 1 4 | x |
| = | 1 20 | x | + | 240 |
1 20 | x | + | 240 | = | 1288 | − | 960 |
| Right side of the equation = | 328 |
1 20 | x | + | 240 | = | 328 |
1 20 | x | = | 328 | − | 240 |
1 20 | x | = | 88 |
| x | = | 88 | ÷ | 1 20 |
| = | 88 | × | 20 |
| x | = | 1760 |