7y=9+4y

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Solution for 7y=9+4y equation: 



7y=9+4y

We move all terms to the left:

7y-(9+4y)=0

We add all the numbers together, and all the variables

7y-(4y+9)=0

We get rid of parentheses

7y-4y-9=0

We add all the numbers together, and all the variables

3y-9=0

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

3y=9

y=9/3

y=3

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