Answer
$x=12$
Work Step by Step
We need to get the x alone. In order to cancel out division, we use multiplication, so we multiply both sides by 2 to get that $x+3=15$. We now cancel out the addition by subtracting 3 on both sides, giving us a final answer of $x=12$. We plug 12 in for x and confirm that our answer is, indeed, correct.
