Find g(f(x)) f(x)=3x g(x)=x+5

$f (x) = 3 x$ $g (x) = x + 5$

Step 1

Set up the composite result function.

$g (f (x))$

Step 2

Evaluate $g (3 x)$ by substituting in the value of $f$ into $g$ .

$g (3 x) = (3 x) + 5$

Step 3

Remove parentheses.

$g (3 x) = 3 x + 5$