SOLUTION: If the average of three numbers is V. If one of the numbers is Z and another is Y, what is the remaining number?

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Question 142047: If the average of three numbers is V. If one of the numbers is Z and another is Y, what is the remaining number?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
If the average of three numbers is V. If one of the numbers is Z and another is Y, what is the remaining number?
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Let the remaining number be X:
EQUATION:
(X + Y + Z)/3 = V
(x + Y + Z) = 3V
X = 3V -Y - Z
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Cheers,
Stan H.