27=9^x-1

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Solution for 27=9^x-1 equation: 



27=9^x-1

We move all terms to the left:

27-(9^x-1)=0

We get rid of parentheses

-9^x+1+27=0

We add all the numbers together, and all the variables

-9^x+28=0

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

-9^x=-28

x=-28/1

x=-28

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