| - | 3 | + | 9 | ( | 1 | + | 8 | ( | - | 14 | − | 2 | x | ) | ) | = | - | 10 | ( | 3 | x | + | 9 | ) |
| Left side of the equation = | - | 3 | + | 9 | × | 1 | + | 9 | × | 8 | ( | - | 14 | − | 2 | x | ) |
| = | - | 3 | + | 9 | + | 72 | ( | - | 14 | − | 2 | x | ) |
| = | 6 | + | 72 | ( | - | 14 | − | 2 | x | ) |
| = | 6 | − | 72 | × | 14 | − | 72 | × | 2 | x |
| = | 6 | − | 1008 | − | 144 | x |
| = | - | 1002 | − | 144 | x |
| - | 1002 | − | 144 | x | = | - | 10 | ( | 3 | x | + | 9 | ) |
| Right side of the equation = | - | 10 | × | 3 | x | − | 10 | × | 9 |
| = | - | 30 | x | − | 90 |
| - | 1002 | − | 144 | x | = | - | 30 | x | − | 90 |
| - | 144 | x | + | 30 | x | = | - | 90 | + | 1002 |
| - | 114 | x | = | - | 90 | + | 1002 |
| - | 114 | x | = | 912 |
| - | 912 | = | 114 | x |
| 114 | x | = | - | 912 |
| x | = | - | 912 | ÷ | 114 |
| = | - | 912 | × | 1 114 |
| = | - | 8 | × | 1 |
| x | = | - | 8 |