Up, just put some points in the graphic and you'll see
Take the three and divide it with the 12 which would get you 4 so put a open circle Above the 4 and make the line go to the left I think I hope this will help
So you reversed the subtraction a bit; the equation you're gonna be solving is

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First step ya gonna do is to reverse the + and - symbols in the trinomial thats in the parentheses so your equation looks like

Now just combine like terms and your answer should be