f(3)=-2(23+5)

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Solution for f(3)=-2(23+5) equation:


f (3)=-2 (23+5)

We simplify the equation to the form, which is simple to understand 
f(3)=-2(23+5)

Simplifying terms in parentheses
f*(3)=-2*(+28)

Reorder the terms in parentheses
+(+3f)=-2*(+28)

Remove unnecessary parentheses
+3f=-2+*(+28+)

Reorder the terms in parentheses
+3f=+(-56)

Remove unnecessary parentheses
+3f=-56

We move all terms containing f to the left and all other terms to the right. 
+3f=-56

We simplify left and right side of the equation. 
+3f=-56

We divide both sides of the equation by 3 to get f. 
f=-18.6666666667

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