f(-4)=13

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Solution for f(-4)=13 equation:


f(-4)=13

We simplify the equation to the form, which is simple to understand 
f(-4)=13

Reorder the terms in parentheses
+(-4f)=13

Remove unnecessary parentheses
-4f=+13

We move all terms containing f to the left and all other terms to the right. 
-4f=+13

We simplify left and right side of the equation. 
-4f=+13

We divide both sides of the equation by -4 to get f. 
f=-3.25

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