| ( | 55147 10 | − | y | ) | ÷ | y | = | 7 100 |
| Multiply both sides of the equation by: | y |
| ( | 55147 10 | − | y | ) | = | 7 100 | y |
55147 10 | − | y | = | 7 100 | y |
| - | y | − | 7 100 | y | = | - | 55147 10 |
| - | 107 100 | y | = | - | 55147 10 |
55147 10 | = | 107 100 | y |
107 100 | y | = | 55147 10 |
| y | = | 55147 10 | ÷ | 107 100 |
| = | 55147 10 | × | 100 107 |
| = | 55147 | × | 10 107 |
| y | = | 551470 107 |
| y | = | 5153.925234 |