y=7y-9-3y

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



y=7y-9-3y

We move all terms to the left:

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

We add all the numbers together, and all the variables

y-(4y-9)=0

We get rid of parentheses

y-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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