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x+12x+20=0
We simplify the equation to the form, which is simple to understand
x+12x+20=0
We move all terms containing x to the left and all other terms to the right.
+1x+12x=0-20
We simplify left and right side of the equation.
+13x=-20
We divide both sides of the equation by 13 to get x.
x=-1.53846153846
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