7y+6y=+3y-9y

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Solution for 7y+6y=+3y-9y equation: 



7y+6y=+3y-9y

We move all terms to the left:

7y+6y-(+3y-9y)=0

We add all the numbers together, and all the variables

7y+6y-(-6y)=0

We add all the numbers together, and all the variables

13y-(-6y)=0

We get rid of parentheses

13y+6y=0

We add all the numbers together, and all the variables

19y=0

y=0/19

y=0

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