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-84=-7(x+4)
We simplify the equation to the form, which is simple to understand
-84=-7(x+4)
Reorder the terms in parentheses
-84=+(-7x-28)
Remove unnecessary parentheses
-84=-7x-28
We move all terms containing x to the left and all other terms to the right.
+7x=-28+84
We simplify left and right side of the equation.
+7x=+56
We divide both sides of the equation by 07 to get x.
x=8
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