| 12 | ( | 33 | x | + | 10 | ) | − | 30354 | = | 27 | x | + | 24 |
| Left side of the equation = | 12 | × | 33 | x | + | 12 | × | 10 | − | 30354 |
| = | 396 | x | + | 120 | − | 30354 |
| = | 396 | x | − | 30234 |
| 396 | x | − | 30234 | = | 27 | x | + | 24 |
| 396 | x | − | 27 | x | = | 24 | + | 30234 |
| 369 | x | = | 24 | + | 30234 |
| 369 | x | = | 30258 |
| x | = | 30258 | ÷ | 369 |
| = | 30258 | × | 1 369 |
| = | 82 | × | 1 |
| x | = | 82 |