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4x-12x=56
We simplify the equation to the form, which is simple to understand
4x-12x=56
We move all terms containing x to the left and all other terms to the right.
+4x-12x=+56
We simplify left and right side of the equation.
-8x=+56
We divide both sides of the equation by -8 to get x.
x=-7
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