| 6235 | = | ( | 5 | x | + | 30 | ) | ( | 64 | − | x | ) |
| Right side of the equation = | 5 | x | ( | 64 | − | x | ) | + | 30 | ( | 64 | − | x | ) |
| = | 5 | x | × | 64 | − | 5 | x | x | + | 30 | ( | 64 | − | x | ) |
| = | 320 | x | − | 5 | x | x | + | 30 | ( | 64 | − | x | ) |
| = | 320 | x | − | 5 | x | x | + | 30 | × | 64 | − | 30 | x |
| = | 320 | x | − | 5 | x | x | + | 1920 | − | 30 | x |
| = | 290 | x | − | 5 | x | x | + | 1920 |
| 6235 | = | 290 | x | − | 5 | x | x | + | 1920 |