Question

Which value of a from the set {3, 4, 5, 6} makes this equation true? a + 4(a − 5) = 5

Answer 1

The answer is 5 you just have to plug in the values

Answer 2

A + 4(a - 5) = 5
a + 4a - 20 = 5
5a = 5 + 20
5a = 25
a = 25/5
a = 5 <====