-7y-9=9-4y

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Solution for -7y-9=9-4y equation: 



-7y-9=9-4y

We move all terms to the left:

-7y-9-(9-4y)=0

We add all the numbers together, and all the variables

-7y-(-4y+9)-9=0

We get rid of parentheses

-7y+4y-9-9=0

We add all the numbers together, and all the variables

-3y-18=0

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

-3y=18

y=18/-3

y=-6

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