SOLUTION: How do you work this problem. It says to give all values of x. "The geometric mean of x+1 and 12x is 6x."

Algebra ->  Proportions  -> Lessons -> SOLUTION: How do you work this problem. It says to give all values of x. "The geometric mean of x+1 and 12x is 6x."      Log On


   



Question 270375: How do you work this problem. It says to give all values of x. "The geometric mean of x+1 and 12x is 6x."
Answer by JBarnum(2146) About Me  (Show Source):
You can put this solution on YOUR website!
the mean is adding all the variables up and dividing by that many variables to get ur answer.
so theres 2 variables (x+1) and(12x) so we add them then divide by 2 to =6x
%28%28x%2B1%29%2B%2812x%29%29%2F2=6xmultiply both sides by 2
%28x%2B1%29%2B%2812x%29=12x add
13x%2B1=12xsubtract 12x and 1 from each side
x=-1this is the only value