| 100000 | ÷ | ( | 1 | + | Y | ) | − | 13 50 | × | 100000 | ÷ | ( | 1 | + | Y | ) | = | 37 50 | × | 100000 |
| Multiply both sides of the equation by: | ( | 1 | + | Y | ) |
| 100000 | − | 13 50 | × | 100000 | = | 37 50 | × | 100000 | ( | 1 | + | Y | ) |
| 100000 | − | 13 50 | × | 100000 | = | 37 50 | × | 100000 | × | 1 | + | 37 50 | × | 100000 | Y |
| 100000 | − | 26000 | = | 74000 | + | 74000 | Y |
| 74000 | = | 74000 | + | 74000 | Y |
| - | 74000 | Y | = | 74000 | − | 74000 |
| - | 74000 | Y | = | 0 |
| - | 0 | = | 74000 | Y |
| 74000 | Y | = | - | 0 |
| Y | = | - | 0 | ÷ | 74000 |
| = | - | 0 | × | 1 74000 |
| Y | = | 0 |