f(4)=4-9

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Solution for f(4)=4-9 equation:


f(4)=4-9

We simplify the equation to the form, which is simple to understand 
f(4)=4-9

Reorder the terms in parentheses
+(+4f)=4-9

Remove unnecessary parentheses
+4f=+4-9

We move all terms containing f to the left and all other terms to the right. 
+4f=+4-9

We simplify left and right side of the equation. 
+4f=-5

We divide both sides of the equation by 4 to get f. 
f=-1.25

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