| ( | 2 | x | ÷ | ( | 2 | x | − | 5 | ) | ) | − | ( | 2 | ÷ | ( | 2 | x | + | 5 | ) | ) | = | 1 |
| 2 | x | ÷ | ( | 2 | x | − | 5 | ) | − | ( | 2 | ÷ | ( | 2 | x | + | 5 | ) | ) | = | 1 |
| Multiply both sides of the equation by: | ( | 2 | x | − | 5 | ) |
| 2 | x | − | ( | 2 | ÷ | ( | 2 | x | + | 5 | ) | ) | ( | 2 | x | − | 5 | ) | = | 1 | ( | 2 | x | − | 5 | ) |
| 2 | x | − | 2 | ÷ | ( | 2 | x | + | 5 | ) | × | ( | 2 | x | − | 5 | ) | = | 1 | ( | 2 | x | − | 5 | ) |
| 2 | x | − | 2 | ÷ | ( | 2 | x | + | 5 | ) | × | ( | 2 | x | − | 5 | ) | = | 1 | × | 2 | x | − | 1 | × | 5 |
| 2 | x | − | 2 | ÷ | ( | 2 | x | + | 5 | ) | × | ( | 2 | x | − | 5 | ) | = | 2 | x | − | 5 |
| Multiply both sides of the equation by: | ( | 2 | x | + | 5 | ) |
| 2 | x | ( | 2 | x | + | 5 | ) | − | 2 | ( | 2 | x | − | 5 | ) | = | 2 | x | ( | 2 | x | + | 5 | ) | − | 5 | ( | 2 | x | + | 5 | ) |
| 2 | x | × | 2 | x | + | 2 | x | × | 5 | − | 2 | ( | 2 | x | − | 5 | ) | = | 2 | x | ( | 2 | x | + | 5 | ) | − | 5 | ( | 2 | x | + | 5 | ) |
| 2 | x | × | 2 | x | + | 2 | x | × | 5 | − | 2 | ( | 2 | x | − | 5 | ) | = | 2 | x | × | 2 | x | + | 2 | x | × | 5 | − | 5 | ( | 2 | x | + | 5 | ) |
| 4 | x | x | + | 10 | x | − | 2 | ( | 2 | x | − | 5 | ) | = | 4 | x | x | + | 10 | x | − | 5 | ( | 2 | x | + | 5 | ) |
| 4 | x | x | + | 10 | x | − | 2 | × | 2 | x | + | 2 | × | 5 | = | 4 | x | x | + | 10 | x | − | 5 | ( | 2 | x | + | 5 | ) |
| 4 | x | x | + | 10 | x | − | 2 | × | 2 | x | + | 2 | × | 5 | = | 4 | x | x | + | 10 | x | − | 5 | × | 2 | x | − | 5 | × | 5 |
| 4 | x | x | + | 10 | x | − | 4 | x | + | 10 | = | 4 | x | x | + | 10 | x | − | 10 | x | − | 25 |
| 4 | x | x | + | 6 | x | + | 10 | = | 4 | x | x | + | 0 | x | − | 25 |
| x1= | - | 35 6 |