3^y-1=1/27

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Solution for 3^y-1=1/27 equation: 



3^y-1=1/27

We move all terms to the left:

3^y-1-(1/27)=0

We add all the numbers together, and all the variables

3^y-1-(+1/27)=0

We get rid of parentheses

3^y-1-1/27=0

We multiply all the terms by the denominator


3^y*27-1-1*27=0

We add all the numbers together, and all the variables

3^y*27-28=0

Wy multiply elements

81y-28=0

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

81y=28

y=28/81

y=28/81

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