13y-9=30

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Solution for 13y-9=30 equation: 



13y-9=30

We move all terms to the left:

13y-9-(30)=0

We add all the numbers together, and all the variables

13y-39=0

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

13y=39

y=39/13

y=3

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