Question

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

6

48

14

8

Answer 1

\[\huge{f(x) =2(x+4)}\]
\[\huge{2(x+4)=20}\]
\[\huge{10=x+4}\]
\[\huge{x=6}\]

Answer 2

the answer is six

Plug 20 in for F(X) and solve for "X"

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