The average of x + 6,6x + 2, and 2x is 4x-7. What is x?
( 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
+36916 
