Inactive Tutor answered 03/04/13
Tutor
New to Wyzant
(5x + y)/a = 2 Given
a*(5x + y)/a = a*2 Multiply each side by a
5x + y = 2a Simplify
(5x + y)/2 = 2a/2 Divide each side by 2
(5x + y)/2 = a Simplify
a = (5x + y)/2 Symmetric Property