| ( | x | − | 1 25 | ) | ÷ | ( | 1 20 | − | 1 25 | ) | = | 248401 500000 |
| Multiply both sides of the equation by: | ( | 1 20 | − | 1 25 | ) |
| ( | x | − | 1 25 | ) | = | 248401 500000 | ( | 1 20 | − | 1 25 | ) |
| x | − | 1 25 | = | 248401 500000 | ( | 1 20 | − | 1 25 | ) |
| x | − | 1 25 | = | 248401 500000 | × | 1 20 | − | 248401 500000 | × | 1 25 |
| x | − | 1 25 | = | 248401 10000000 | − | 248401 12500000 |