| 30 | ( | 1 | + | y | ) | + | 500 | = | 48217 100 | ( | 1 | + | y | ) | ( | 1 | + | y | ) |
| Left side of the equation = | 30 | × | 1 | + | 30 | y | + | 500 |
| = | 30 | + | 30 | y | + | 500 |
| = | 530 | + | 30 | y |
| 530 | + | 30 | y | = | 48217 100 | ( | 1 | + | y | ) | ( | 1 | + | y | ) |
| Right side of the equation = | 48217 100 | × | 1 | ( | 1 | + | y | ) | + | 48217 100 | y | ( | 1 | + | y | ) |
| = | 48217 100 | ( | 1 | + | y | ) | + | 48217 100 | y | ( | 1 | + | y | ) |
| = | 48217 100 | × | 1 | + | 48217 100 | y | + | 48217 100 | y | ( | 1 | + | y | ) |
| = | 48217 100 | + | 48217 100 | y | + | 48217 100 | y | ( | 1 | + | y | ) |
| = | 48217 100 | + | 48217 100 | y | + | 48217 100 | y | × | 1 | + | 48217 100 | y | y |
| = | 48217 100 | + | 48217 100 | y | + | 48217 100 | y | + | 48217 100 | y | y |
| = | 48217 100 | + | 48217 50 | y | + | 48217 100 | y | y |
| 530 | + | 30 | y | = | 48217 100 | + | 48217 50 | y | + | 48217 100 | y | y |