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9^2x+^5=81^x+1
We move all terms to the left:
9^2x+^5-(81^x+1)=0
We add all the numbers together, and all the variables
9^2x-(81^x+1)=0
We get rid of parentheses
9^2x-81^x-1=0
We move all terms containing x to the left, all other terms to the right
9^2x-81^x=1
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