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

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Question 453471: What is the average (arithmetic mean) of 4x + 5, 7x-6,and -8x+2?
Answer by solver91311(24713) About Me  (Show Source):
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Just add the three binomials, collecting like terms, and then divide by 3.

John

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