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1/3^(2x+10)=81
We move all terms to the left:
1/3^(2x+10)-(81)=0
Domain of the equation: 3^(2x+10)!=0We multiply all the terms by the denominator
x∈R
-81*3^(2x+10)+1=0
Wy multiply elements
-243x(2+1=0
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