SOLUTION: solve for x: (1/3)^4x-1=3^x-1

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Question 439323: solve for x:
(1/3)^4x-1=3^x-1
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
%281%2F3%29%5E%284x-1%29+=+3%5E%28x-1%29
<==> 3%5E%28-4x+%2B+1%29+=+3%5E%28x-1%29
==> -4x + 1 = x-1
==> 2 = 5x
==> x = 2/5