| 7555 | x | + | 6800 | ( | 14 | − | x | ) | = | 104260 |
| Left side of the equation = | 7555 | x | + | 6800 | × | 14 | − | 6800 | x |
| = | 7555 | x | + | 95200 | − | 6800 | x |
| = | 755 | x | + | 95200 |
| 755 | x | + | 95200 | = | 104260 |
| 755 | x | = | 104260 | − | 95200 |
| 755 | x | = | 9060 |
| x | = | 9060 | ÷ | 755 |
| = | 9060 | × | 1 755 |
| = | 1812 | × | 1 151 |
| x | = | 1812 151 |
| x | = | 12 |