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