| 28063 | ÷ | x | + | 13328 | ÷ | ( | 1 | − | x | ) | = | 21559 |
| Multiply both sides of the equation by: | x |
| 28063 | + | 13328 | ÷ | ( | 1 | − | x | ) | × | x | = | 21559 | x |
| Multiply both sides of the equation by: | ( | 1 | − | x | ) |
| 28063 | ( | 1 | − | x | ) | + | 13328 | x | = | 21559 | x | ( | 1 | − | x | ) |
| 28063 | × | 1 | − | 28063 | x | + | 13328 | x | = | 21559 | x | ( | 1 | − | x | ) |
| 28063 | × | 1 | − | 28063 | x | + | 13328 | x | = | 21559 | x | × | 1 | − | 21559 | x | x |
| 28063 | − | 28063 | x | + | 13328 | x | = | 21559 | x | − | 21559 | x | x |
| 28063 | − | 14735 | x | = | 21559 | x | − | 21559 | x | x |