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f (-2)=3-2-2 (-2-1)
We simplify the equation to the form, which is simple to understand
f(-2)=3-2-2(-2-1)
Simplifying terms in parentheses
f*(-2)=3-2-2*(-3)
Reorder the terms in parentheses
+(-2f)=3-2-2*(-3)
Remove unnecessary parentheses
-2f=+3-2-2+*(-3+)
Reorder the terms in parentheses
-2f=3-2+(+6)
Remove unnecessary parentheses
-2f=+3-2+6
We move all terms containing f to the left and all other terms to the right.
-2f=+3-2+6
We simplify left and right side of the equation.
-2f=+7
We divide both sides of the equation by -2 to get f.
f=-3.5
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