4/9^n=18

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Solution for 4/9^n=18 equation: 



4/9^n=18

We move all terms to the left:

4/9^n-(18)=0



Domain of the equation: 9^n!=0

n!=0/1

n!=0

n∈R



We multiply all the terms by the denominator


-18*9^n+4=0

Wy multiply elements

-162n+4=0

We move all terms containing n to the left, all other terms to the right

-162n=-4

n=-4/-162

n=2/81

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