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

What is the average (arithmetic mean ) of 4x +5 , 7x-6 and -8x + 2?
  • A) x +13
  • B) x +1
  • C) 3x + 13
  • D) 3x + 1

Correct Answer: A) x +13

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