SOLUTION: Solve for x: logbase9 x + -1/2 I thought the answer was x=3 but I was told that I was wrong:(

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Question 134642: Solve for x:
logbase9 x + -1/2 I thought the answer was x=3 but I was told that I was wrong:(
Answer by Earlsdon(6287) About Me  (Show Source):
You can put this solution on YOUR website!
Try this:
Log%5B9%5D%28x%29+=+-%281%2F2%29 Rewrite this in exponential form:Log%5Bb%5D%28y%29+=+x means b%5Ex+=+y, so...
Log%5B9%5D%28x%29+=+-%281%2F2%29 means 9%5E%28-1%2F2%29+=+x Simplify. 1%2Fsqrt%289%29+=+x or 1%2F3+=+x