| ( | 5661 10 | − | y | ) | ÷ | y | = | 71 1000 |
| Multiply both sides of the equation by: | y |
| ( | 5661 10 | − | y | ) | = | 71 1000 | y |
5661 10 | − | y | = | 71 1000 | y |
| - | y | − | 71 1000 | y | = | - | 5661 10 |
| - | 1071 1000 | y | = | - | 5661 10 |
5661 10 | = | 1071 1000 | y |
1071 1000 | y | = | 5661 10 |
| y | = | 5661 10 | ÷ | 1071 1000 |
| = | 5661 10 | × | 1000 1071 |
| = | 629 | × | 100 119 |
| y | = | 62900 119 |
| y | = | 3700 7 |
| y | = | 528.571429 |