R/5 - 6 = -1

I know the answer is 25, but can you show me the steps.
Thank you.

R/5 - 6 = -1

add 6 to both sides
R/5 +0 = 6 - 1

R/5 = 5 now multiply both sides by 5

(R/5)5 = (5)(5)

R = 25