12+7y=9-4y

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Solution for 12+7y=9-4y equation: 



12+7y=9-4y

We move all terms to the left:

12+7y-(9-4y)=0

We add all the numbers together, and all the variables

7y-(-4y+9)+12=0

We get rid of parentheses

7y+4y-9+12=0

We add all the numbers together, and all the variables

11y+3=0

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

11y=-3

y=-3/11

y=-3/11

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