| n | ÷ | ( | 360 | − | n | ) | = | 309 500 |
| Multiply both sides of the equation by: | ( | 360 | − | n | ) |
| n | = | 309 500 | ( | 360 | − | n | ) |
| n | = | 309 500 | × | 360 | − | 309 500 | n |
| n | = | 5562 25 | − | 309 500 | n |
| n | + | 309 500 | n | = | 5562 25 |
809 500 | n | = | 5562 25 |
| n | = | 5562 25 | ÷ | 809 500 |
| = | 5562 25 | × | 500 809 |
| = | 5562 | × | 20 809 |
| n | = | 111240 809 |
| n | = | 137.50309 |