| ( | 61 25 | x | ) | ÷ | ( | 1 | + | 36 25 | x | ) | = | 21 | x | − | 52 5 |
| Multiply both sides of the equation by: | ( | 1 | + | 36 25 | x | ) |
| ( | 61 25 | x | ) | = | 21 | x | ( | 1 | + | 36 25 | x | ) | − | 52 5 | ( | 1 | + | 36 25 | x | ) |
61 25 | x | = | 21 | x | ( | 1 | + | 36 25 | x | ) | − | 52 5 | ( | 1 | + | 36 25 | x | ) |
61 25 | x | = | 21 | x | × | 1 | + | 21 | x | × | 36 25 | x | − | 52 5 | ( | 1 | + | 36 25 | x | ) |
61 25 | x | = | 21 | x | + | 756 25 | x | x | − | 52 5 | ( | 1 | + | 36 25 | x | ) |
61 25 | x | = | 21 | x | + | 756 25 | x | x | − | 52 5 | × | 1 | − | 52 5 | × | 36 25 | x |
61 25 | x | = | 21 | x | + | 756 25 | x | x | − | 52 5 | − | 1872 125 | x |
61 25 | x | = | 753 125 | x | + | 756 25 | x | x | − | 52 5 |