SOLUTION: if the average of three numbers is v. if one of the numbers is z and another is y what is the number remaining

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Question 315236: if the average of three numbers is v. if one of the numbers is z and another is y what is the number remaining
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Call the remaining number A.
%28A%2Bz%2By%29%2F3=v
A%2Bz%2By=3v
highlight%28A=3v-z-y%29