Find f(g(x)) f(x)=x-7 , g(x)=2x+1

$f (x) = x - 7$ , $g (x) = 2 x + 1$

Step 1

Set up the composite result function.

$f (g (x))$

Step 2

Evaluate $f (2 x + 1)$ by substituting in the value of $g$ into $f$ .

$f (2 x + 1) = (2 x + 1) - 7$

Step 3

Subtract $7$ from $1$ .

$f (2 x + 1) = 2 x - 6$