f(-7)=7(9)

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Solution for f(-7)=7(9) equation:


f(-7)=7(9)

We simplify the equation to the form, which is simple to understand 
f(-7)=7(9)

Reorder the terms in parentheses
+(-7f)=7*(9)

Remove unnecessary parentheses
-7f=+7+*(+9+)

Reorder the terms in parentheses
-7f=+(+63)

Remove unnecessary parentheses
-7f=+63

We move all terms containing f to the left and all other terms to the right. 
-7f=+63

We simplify left and right side of the equation. 
-7f=+63

We divide both sides of the equation by -7 to get f. 
f=-9

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