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-4x+(-8)=12
We simplify the equation to the form, which is simple to understand
-4x+(-8)=12
Remove unnecessary parentheses
-4x-8=+12
We move all terms containing x to the left and all other terms to the right.
-4x=+12+8
We simplify left and right side of the equation.
-4x=+20
We divide both sides of the equation by -4 to get x.
x=-5
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