Dennis is collecting aluminum cans to raise funds for a local animal shelter. He needs to determine whether he should return the cans to the local supermarket or return the cans to the recycling center.

If he brings the cans to the supermarket, he receives 5 cents per can, if he brings the cans to the recycling center, he receives 6 cents per can but is forced to pay a $15 recycling fee.

How many aluminum cans would he have to return to receive the same amount of money
at the supermarket and the recycling center? Write an equation that describes this problem,
and then solve it.