9^x-1=27

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Solution for 9^x-1=27 equation: 



9^x-1=27

We move all terms to the left:

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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