-3=9-4y

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Solution for -3=9-4y equation: 



-3=9-4y

We move all terms to the left:

-3-(9-4y)=0

We add all the numbers together, and all the variables

-(-4y+9)-3=0

We get rid of parentheses

4y-9-3=0

We add all the numbers together, and all the variables

4y-12=0

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

4y=12

y=12/4

y=3

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