| 66 | ( | 162 | + | x | ) | = | ( | 96 | + | x | ) | ( | 96 | + | x | ) |
| Left side of the equation = | 66 | × | 162 | + | 66 | x |
| = | 10692 | + | 66 | x |
| 10692 | + | 66 | x | = | ( | 96 | + | x | ) | ( | 96 | + | x | ) |
| Right side of the equation = | 96 | ( | 96 | + | x | ) | + | x | ( | 96 | + | x | ) |
| = | 96 | × | 96 | + | 96 | x | + | x | ( | 96 | + | x | ) |
| = | 9216 | + | 96 | x | + | x | ( | 96 | + | x | ) |
| = | 9216 | + | 96 | x | + | x | × | 96 | + | x | x |
| = | 9216 | + | 192 | x | + | x | x |
| 10692 | + | 66 | x | = | 9216 | + | 192 | x | + | x | x |