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-8=-(-x-4)
We simplify the equation to the form, which is simple to understand
-8=-(-x-4)
Remove unnecessary parentheses
-8=+1x+4
We move all terms containing x to the left and all other terms to the right.
-1x=+4+8
We simplify left and right side of the equation.
-1x=+12
We divide both sides of the equation by -01 to get x.
x=-12
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