3=12-4y

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Solution for 3=12-4y equation: 



3=12-4y

We move all terms to the left:

3-(12-4y)=0

We add all the numbers together, and all the variables

-(-4y+12)+3=0

We get rid of parentheses

4y-12+3=0

We add all the numbers together, and all the variables

4y-9=0

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

4y=9

y=9/4

y=2+1/4

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