| ( | 21113 10 | − | y | ) | ÷ | y | = | 3 100 |
| Multiply both sides of the equation by: | y |
| ( | 21113 10 | − | y | ) | = | 3 100 | y |
21113 10 | − | y | = | 3 100 | y |
| - | y | − | 3 100 | y | = | - | 21113 10 |
| - | 103 100 | y | = | - | 21113 10 |
21113 10 | = | 103 100 | y |
103 100 | y | = | 21113 10 |
| y | = | 21113 10 | ÷ | 103 100 |
| = | 21113 10 | × | 100 103 |
| = | 21113 | × | 10 103 |
| y | = | 211130 103 |
| y | = | 2049.805825 |