7=3y+4y

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Solution for 7=3y+4y equation: 



7=3y+4y

We move all terms to the left:

7-(3y+4y)=0

We add all the numbers together, and all the variables

-(+7y)+7=0

We get rid of parentheses

-7y+7=0

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

-7y=-7

y=-7/-7

y=1

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