| ( | 27999 5 | − | y | ) | ÷ | y | = | 5 200 |
| Multiply both sides of the equation by: | y |
| ( | 27999 5 | − | y | ) | = | 5 200 | y |
27999 5 | − | y | = | 5 200 | y |
| - | y | − | 5 200 | y | = | - | 27999 5 |
| - | 41 40 | y | = | - | 27999 5 |
27999 5 | = | 41 40 | y |
41 40 | y | = | 27999 5 |
| y | = | 27999 5 | ÷ | 41 40 |
| = | 27999 5 | × | 40 41 |
| = | 27999 | × | 8 41 |
| y | = | 223992 41 |
| y | = | 5463.219512 |