SOLUTION: What is the average (arithmetic mean) of 4x + 5, 7x-6,and -8x+2?

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Question 552949: What is the average (arithmetic mean) of 4x + 5, 7x-6,and -8x+2?
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Mean = [(4x + 5)+(7x-6)+(-8x+2)]/3

Mean = [4x + 5+7x-6-8x+2]/3

Mean = [(4x+7x-8x) + (5-6+2)]/3

Mean = (3x+1)/3