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12x-40-6x=-(13x+2)
We simplify the equation to the form, which is simple to understand
12x-40-6x=-(13x+2)
Remove unnecessary parentheses
12x-40-6x=-13x-2
We move all terms containing x to the left and all other terms to the right.
+12x-6x+13x=-2+40
We simplify left and right side of the equation.
+19x=+38
We divide both sides of the equation by 19 to get x.
x=2
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