SOLUTION: how do you re-write 3^x=90 as a logarithm and solve it?

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Question 457492: how do you re-write 3^x=90 as a logarithm and solve it?
Answer by nerdybill(7384)   (Show Source): You can put this solution on YOUR website!

take log base 3 of both sides:

applying the "change of base" to the right:




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