7y=9+3y

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Solution for 7y=9+3y equation: 



7y=9+3y

We move all terms to the left:

7y-(9+3y)=0

We add all the numbers together, and all the variables

7y-(3y+9)=0

We get rid of parentheses

7y-3y-9=0

We add all the numbers together, and all the variables

4y-9=0

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

4y=9

y=9/4

y=2+1/4

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