7y-9=14y+12

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Solution for 7y-9=14y+12 equation: 



7y-9=14y+12

We move all terms to the left:

7y-9-(14y+12)=0

We get rid of parentheses

7y-14y-12-9=0

We add all the numbers together, and all the variables

-7y-21=0

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

-7y=21

y=21/-7

y=-3

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