-9=3x+12

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Solution for -9=3x+12 equation:


-9=3x+12

We simplify the equation to the form, which is simple to understand 
-9=3x+12

We move all terms containing x to the left and all other terms to the right. 
-3x=+12+9

We simplify left and right side of the equation. 
-3x=+21

We divide both sides of the equation by -03 to get x. 
x=-7

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