SOLUTION: What is the average arithmetic mean of (4x+3), (-8x+-2) and (7x+8)

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Question 747092: What is the average arithmetic mean of (4x+3), (-8x+-2) and (7x+8)
Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
What is the average arithmetic mean of (4x+3), (-8x+-2) and (7x+8)
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"sum" divided by 3:
[(4x+3)+(-8x+-2)+(7x+8)]/3
[4x+3-8x-2+7x+8]/3
[3-4x-2+7x+8]/3
[1-4x+7x+8]/3
[1+3x+8]/3
[3x+9]/3
x+3