I need to prove 11^n - 6 is divisible by 5 for all n >or = to 1 by induction.

So I start by basis step 11^1 -6 get 5 and 5 is divisible by 5 so basis step is true.

Then I am suppose to add n +1 to both sides and show it is still true.

I am stumped!!! Anyone willing to help a very old and confused student???!!!