Question

If g(x) = 2(x − 4), find the value of x if g(x) = 20

Answer 1

x=14

Explanation:

g(x) = 2(x − 4)

Let g(x) = 20

20 = 2(x − 4)

Divide each side by 2

20/2 = 2(x-4)/2

10 = x-4

Add 4 to each side

10+4 = x-4+4

14 =x