9^3=3^y

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Solution for 9^3=3^y equation: 



9^3=3^y

We move all terms to the left:

9^3-(3^y)=0

We add all the numbers together, and all the variables

-3^y+729=0

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

-3^y=-729

y=-729/1

y=-729

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