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The average of x + 6,6x + 2, and 2x is 4x-7. What is x?

 Apr 13, 2021
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  (  x+6    + 6x+2    + 2x) / 3    = 4x-7

      (9x   + 8 ) / 3    = 4x-7

        3x   + 8/3   = 4x -7

              7 8/3  = x = 9  2/3

 Apr 13, 2021
edited by ElectricPavlov  Apr 13, 2021

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