Find g(f(x)) f(x)=2x , g(x)=x+3

$f (x) = 2 x$ , $g (x) = x + 3$

Step 1

Set up the composite result function.

$g (f (x))$

Step 2

Evaluate $g (2 x)$ by substituting in the value of $f$ into $g$ .

$g (2 x) = (2 x) + 3$

Step 3

Remove parentheses.

$g (2 x) = 2 x + 3$