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1/243^x=3
We move all terms to the left:
1/243^x-(3)=0
Domain of the equation: 243^x!=0We multiply all the terms by the denominator
x!=0/1
x!=0
x∈R
-3*243^x+1=0
Wy multiply elements
-729x+1=0
We move all terms containing x to the left, all other terms to the right
-729x=-1
x=-1/-729
x=1/729
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