9=81*(3^x)

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Solution for 9=81*(3^x) equation: 



9=81(3^x)

We move all terms to the left:

9-(81(3^x))=0

determiningTheFunctionDomain
-813^x+9=0

We move all terms containing x to the left, all other terms to the right

-813^x=-9

x=-9/1

x=-9

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