Algebra Examples

$f (x) = 2 x - 1$ $g (x) = 3$

Step 1

Set up the composite result function.

$f (g (x))$

Step 2

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

$f (3) = 2 (3) - 1$

Step 3

Multiply $2$ by $3$ .

$f (3) = 6 - 1$

Step 4

Subtract $1$ from $6$ .

$f (3) = 5$