| ( | 25 | ÷ | 4 | ) | ( | 25 | ÷ | 4 | ) | − | x | x | = | 50 | − | ( | 25 | ÷ | 4 | − | x | ) | ( | 25 | ÷ | 4 | − | x | ) |
| Left side of the equation = | 25 | ÷ | 4 | × | ( | 25 | ÷ | 4 | ) | − | x | x |
| = | 25 4 | ( | 25 | ÷ | 4 | ) | − | x | x |
| = | 25 4 | × | 25 | ÷ | 4 | − | x | x |
| = | 625 16 | − | x | x |
625 16 | − | x | x | = | 50 | − | ( | 25 | ÷ | 4 | − | x | ) | ( | 25 | ÷ | 4 | − | x | ) |
| Right side of the equation = | 50 | − | 25 | ÷ | 4 | × | ( | 25 | ÷ | 4 | − | x | ) | + | x | ( | 25 | ÷ | 4 | − | x | ) |
| = | 50 | − | 25 4 | ( | 25 | ÷ | 4 | − | x | ) | + | x | ( | 25 | ÷ | 4 | − | x | ) |
| = | 50 | − | 25 4 | × | 25 | ÷ | 4 | + | 25 4 | x | + | x | ( | 25 | ÷ | 4 | − | x | ) |
| = | 50 | − | 625 16 | + | 25 4 | x | + | x | ( | 25 | ÷ | 4 | − | x | ) |
| = | 175 16 | + | 25 4 | x | + | x | ( | 25 | ÷ | 4 | − | x | ) |
| = | 175 16 | + | 25 4 | x | + | x | × | 25 | ÷ | 4 | − | x | x |
| = | 175 16 | + | 25 4 | x | + | x | × | 25 4 | − | x | x |
| = | 175 16 | + | 25 2 | x | − | x | x |
625 16 | − | x | x | = | 175 16 | + | 25 2 | x | − | x | x |
| x= | 9 4 |