x+2x-12=-9

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Solution for x+2x-12=-9 equation:


x+2x-12=-9

We simplify the equation to the form, which is simple to understand 
x+2x-12=-9

We move all terms containing x to the left and all other terms to the right. 
+1x+2x=-9+12

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

We divide both sides of the equation by 3 to get x. 
x=1

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