If the average (arithmetic mean) of 4x-5, 8x-6, and 9x+5 is 279, what is the value of x?	Choose one:
A) 18 B) 25 C) 27 D) 29 E) 31
AM of 4x-5, 8x-6, and 9x+5=4x-5+ 8x-6+9x+5 / 3 = 31x/3   Given that 31x/3 = 279   x = 837/31= 
<gadget id="calculator">837/31</gadget>
<output>27</output>
27   x= 27   Answer is 27
<result>C</result>
If the average (arithmetic mean) of 4x-5, 8x-6, and 9x+5 is 279, what is the value of x?