Algebra Examples

$f (x) = 3 x + 5$ , $g (x) = x + 7$

Step 1

Set up the composite result function.

$g (f (x))$

Step 2

Evaluate $g (3 x + 5)$ by substituting in the value of $f$ into $g$ .

$g (3 x + 5) = (3 x + 5) + 7$

Step 3

Add $5$ and $7$ .

$g (3 x + 5) = 3 x + 12$