| 4 | x | x | ÷ | ( | ( | 1 50 | − | x | ) | ( | 1 50 | − | x | ) | ) | = | 1 | ÷ | 4 |
| Multiply both sides of the equation by: | ( | ( | 1 50 | − | x | ) | ( | 1 50 | − | x | ) | ) |
| 4 | x | x | = | 1 | ÷ | 4 | × | ( | ( | 1 50 | − | x | ) | ( | 1 50 | − | x | ) | ) |
| 4 | x | x | = | 1 | ÷ | 4 | × | ( | 1 50 | − | x | ) | ( | 1 50 | − | x | ) |
| 4 | x | x | = | 1 4 | ( | 1 50 | − | x | ) | ( | 1 50 | − | x | ) |
| 4 | x | x | = | 1 4 | × | 1 50 | ( | 1 50 | − | x | ) | − | 1 4 | x | ( | 1 50 | − | x | ) |
| 4 | x | x | = | 1 200 | ( | 1 50 | − | x | ) | − | 1 4 | x | ( | 1 50 | − | x | ) |
| 4 | x | x | = | 1 200 | × | 1 50 | − | 1 200 | x | − | 1 4 | x | ( | 1 50 | − | x | ) |
| 4 | x | x | = | 1 10000 | − | 1 200 | x | − | 1 4 | x | ( | 1 50 | − | x | ) |
| 4 | x | x | = | 1 10000 | − | 1 200 | x | − | 1 4 | x | × | 1 50 | + | 1 4 | x | x |
| 4 | x | x | = | 1 10000 | − | 1 200 | x | − | 1 200 | x | + | 1 4 | x | x |
| 4 | x | x | = | 1 10000 | − | 1 100 | x | + | 1 4 | x | x |