SOLUTION: Find the value of x if the arithmetic mean of 3 and 3x+5 is 8.

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Question 1142420: Find the value of x if the arithmetic mean of 3 and 3x+5 is 8.
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
Find the value of x if the arithmetic mean of 3 and 3x+5 is 8.
:
%283%2B%283x%2B5%29%29%2F2 = 8
3 + 3x + 5 = 16
3x + 8 = 16
3x = 16 - 8
3x = 8
x = 8%2F3