Algebra Examples

$f (x) = \frac{x + 3}{7}$ , $g (x) = 3 x - 7$

Step 1

Set up the composite result function.

$f (g (x))$

Step 2

Evaluate $f (3 x - 7)$ by substituting in the value of $g$ into $f$ .

$f (3 x - 7) = \frac{(3 x - 7) + 3}{7}$

Step 3

Add $- 7$ and $3$ .

$f (3 x - 7) = \frac{3 x - 4}{7}$