Question

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

6

48

14

8

Answer 1

20=2x-8
28=2x
x=14

Answer 2

you are all wrong

20=2(x+4)
10=x+4
x=6

Answer 3

2(x+4)=20
(x+4)=10
x=10-4
x=6

Answer 4

f(x) = 2(x + 4)


20 = 2(x + 4)


20 = 2x + 8


20-8 = 2x


12 = 2x


12/2 = x


6 = x


x = 6

Answer 5

liamarie the mistake you made is u said -8 instead of +8


therefore, like i said, the answer is 6