9^-r+2=81

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Solution for 9^-r+2=81 equation: 



9^-r+2=81

We move all terms to the left:

9^-r+2-(81)=0

determiningTheFunctionDomain
-r+2-81+9^=0

We add all the numbers together, and all the variables

-r=0

r=0/-1

r=0

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