Factor out the coefficent of the variable?

Question

How do I factor out the coefficient of the variable 1/5k+15

Answer 1

The variable in this problem is k, so you just divide everything by 1/5 and put it on the outside:

(1/5)k/(1/5) = k

15/(1/5) = 75

so we get (1/5)(k + 75)