SOLUTION: 3raised to power 2x-1 is eqaul to 81.find x

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Question 526827: 3raised to power 2x-1 is eqaul to 81.find x
Answer by nerdybill(7384) About Me  (Show Source):
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3raised to power 2x-1 is eqaul to 81.find x
3%5E%282x-1%29+=+81
can be rewritten as:
3%5E%282x-1%29+=+3%5E4
2x-1+=+4
2x+=+5
x+=+5%2F2
x+=+2.5