3=7+4y

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Solution for 3=7+4y equation: 



3=7+4y

We move all terms to the left:

3-(7+4y)=0

We add all the numbers together, and all the variables

-(4y+7)+3=0

We get rid of parentheses

-4y-7+3=0

We add all the numbers together, and all the variables

-4y-4=0

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

-4y=4

y=4/-4

y=-1

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