SOLUTION: if 9^x = 3^(x-1) / 2^(x+1), find x.

Question 1134207: if 9^x = 3^(x-1) / 2^(x+1), find x.
Answer by ikleyn(52779) (Show Source): You can put this solution on YOUR website!
.

if  9^x = 3^(x-1) / 2^(x+1),    then


 = ,   or, equivalently,


 = ,        or, equivalently


. = 1,         or, equivalently


 = 1,


which implies   


x + 1 = 0,    or  x= -1.      ANSWER.

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