SOLUTION: Solve for x : (1/3)^x = 81^1-x

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Question 410438: Solve for x : (1/3)^x = 81^1-x
Answer by robertb(4012) About Me  (Show Source):
You can put this solution on YOUR website!
3%5E%28-x%29+=+3%5E%284%281-x%29%29
==> -x = 4(1-x)
==> -x = 4 - 4x
==> 3x = 4
==> x = 4/3.