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 309823: 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 ankor@dixie-net.com(22740) 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?
:
Let x = remaining number
:
%28x%2By%2Bz%29%2F3 = V
Multiply both sides by 3
x + y + z = 3V
x = 3V - y - z, is the remaining number