SOLUTION: Let the operation x � y be defined by x � y = (2y + x) + (3x - y). If 2 � 1 = 3 � w, what is the value of w?

Question 259701: Let the operation x � y be defined by x � y = (2y + x) + (3x - y).
If 2 � 1 = 3 � w, what is the value of w?
Answer by drk(1908) (Show Source): You can put this solution on YOUR website!
Don't be freaked by the operation they give you. Looking at it, we can say that it means
"twice the second + the first + 3 times the first minus the second"
We can actually simplify this as

--
We start with
2 � 1 = 4(2) + 1 = 9
and then
3 � w = 4(3) + w
--
set them equal to get

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