y-7=3y+9

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



y-7=3y+9

We move all terms to the left:

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

We get rid of parentheses

y-3y-9-7=0

We add all the numbers together, and all the variables

-2y-16=0

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

-2y=16

y=16/-2

y=-8

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