P.E.M.D.A.S. as you should know, goes in this order: Parentheses, Exponents, Multiply-Divide, and Add-Subtract.
Going through this order, you get 6/2 x 3 (Six divided by 2 times 3, because Parentheses first!)
Next, since there are no exponents, we multiply/divide. 6/2 is 3. 3 x 3
3x3 is a simple 9. Your answer is 9 then! Good luck!
Hope I helped!!!