SOLUTION: What is the arithmetic mean of the following equations: 6x+3, -x-9, and 4-4x?

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Question 911548: What is the arithmetic mean of the following equations: 6x+3, -x-9, and 4-4x?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Take the average.
A=%286x%2B3-x-9%2B4-4x%29%2F3
A=%28x-2%29%2F3