f(2)=4

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Solution for f(2)=4 equation:


f(2)=4

We simplify the equation to the form, which is simple to understand 
f(2)=4

Reorder the terms in parentheses
+(+2f)=4

Remove unnecessary parentheses
+2f=+4

We move all terms containing f to the left and all other terms to the right. 
+2f=+4

We simplify left and right side of the equation. 
+2f=+4

We divide both sides of the equation by 2 to get f. 
f=2

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