| ( | x | x | ) | ÷ | ( | ( | 1 | − | x | ) | ( | 1 | − | x | ) | ( | 1 | − | x | ) | ) | = | 1600 |
| Multiply both sides of the equation by: | ( | ( | 1 | − | x | ) | ( | 1 | − | x | ) | ( | 1 | − | x | ) | ) |
| ( | x | x | ) | = | 1600 | ( | ( | 1 | − | x | ) | ( | 1 | − | x | ) | ( | 1 | − | x | ) | ) |
| x | x | = | 1600 | ( | ( | 1 | − | x | ) | ( | 1 | − | x | ) | ( | 1 | − | x | ) | ) |
| x | x | = | 1600 | ( | 1 | − | x | ) | ( | 1 | − | x | ) | ( | 1 | − | x | ) |
| x | x | = | 1600 | × | 1 | ( | 1 | − | x | ) | ( | 1 | − | x | ) | − | 1600 | x | ( | 1 | − | x | ) | ( | 1 | − | x | ) |
| x | x | = | 1600 | ( | 1 | − | x | ) | ( | 1 | − | x | ) | − | 1600 | x | ( | 1 | − | x | ) | ( | 1 | − | x | ) |
| x | x | = | 1600 | × | 1 | ( | 1 | − | x | ) | − | 1600 | x | ( | 1 | − | x | ) | − | 1600 | x | ( | 1 | − | x | ) | ( | 1 | − | x | ) |
| x | x | = | 1600 | ( | 1 | − | x | ) | − | 1600 | x | ( | 1 | − | x | ) | − | 1600 | x | ( | 1 | − | x | ) | ( | 1 | − | x | ) |
| x | x | = | 1600 | × | 1 | − | 1600 | x | − | 1600 | x | ( | 1 | − | x | ) | − | 1600 | x | ( | 1 | − | x | ) | ( | 1 | − | x | ) |
| x | x | = | 1600 | − | 1600 | x | − | 1600 | x | ( | 1 | − | x | ) | − | 1600 | x | ( | 1 | − | x | ) | ( | 1 | − | x | ) |
| x | x | = | 1600 | − | 1600 | x | − | 1600 | x | × | 1 | + | 1600 | x | x | − | 1600 | x | ( | 1 | − | x | ) |
| x | x | = | 1600 | − | 1600 | x | − | 1600 | x | + | 1600 | x | x | − | 1600 | x | ( | 1 | − | x | ) | ( | 1 | − | x | ) |
| x | x | = | 1600 | − | 3200 | x | + | 1600 | x | x | − | 1600 | x | ( | 1 | − | x | ) | ( | 1 | − | x | ) |
| x | x | = | 1600 | − | 3200 | x | + | 1600 | x | x | − | 1600 | x | × | 1 | ( | 1 | − | x | ) | + | 1600 | x |
| x | x | = | 1600 | − | 3200 | x | + | 1600 | x | x | − | 1600 | x | ( | 1 | − | x | ) | + | 1600 | x | x |
| x | x | = | 1600 | − | 3200 | x | + | 1600 | x | x | − | 1600 | x | × | 1 | + | 1600 | x | x |
| x | x | = | 1600 | − | 3200 | x | + | 1600 | x | x | − | 1600 | x | + | 1600 | x | x | + | 1600 |
| x | x | = | 1600 | − | 4800 | x | + | 1600 | x | x | + | 1600 | x | x | + | 1600 | x | x |
| x | x | = | 1600 | − | 4800 | x | + | 1600 | x | x | + | 1600 | x | x | + | 1600 | x | x |
| x | x | = | 1600 | − | 4800 | x | + | 1600 | x | x | + | 1600 | x | x | + | 1600 | x | x |