| x | × | 2 | + | 16 | x | × | 2 | ÷ | ( | x | − | 4 | ) | × | 2 | = | 180 |
| Multiply both sides of the equation by: | ( | x | − | 4 | ) |
| x | × | 2 | ( | x | − | 4 | ) | + | 16 | x | × | 2 | × | 2 | = | 180 | ( | x | − | 4 | ) |
| x | × | 2 | x | − | x | × | 2 | × | 4 | + | 16 | x | × | 2 | × | 2 | = | 180 | ( | x | − | 4 | ) |
| x | × | 2 | x | − | x | × | 2 | × | 4 | + | 16 | x | × | 2 | × | 2 | = | 180 | x | − | 180 | × | 4 |
| x | × | 2 | x | − | x | × | 8 | + | 64 | x | = | 180 | x | − | 720 |
| x | × | 2 | x | + | 56 | x | = | 180 | x | − | 720 |