Question

Given the function f(x) = 2(x + 4), find x if f(x) = 20. (1 point)

Answer 1

x = 6

Explanation:

f(x) = 2(x + 4)

Let f(x) =20

20 = 2(x + 4)

Divide by 2

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

10 = x+4

Subtract 4 from each side

10-4 =x+4-4

6 =x