Algebra Examples

$f (x) = 7 x - 9$ $g (x) = \frac{x + 7}{9}$

Step 1

Set up the composite result function.

$g (f (x))$

Step 2

Evaluate $g (7 x - 9)$ by substituting in the value of $f$ into $g$ .

$g (7 x - 9) = \frac{(7 x - 9) + 7}{9}$

Step 3

Add $- 9$ and $7$ .

$g (7 x - 9) = \frac{7 x - 2}{9}$