7=4(y+7)+3y

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Solution for 7=4(y+7)+3y equation: 



7=4(y+7)+3y

We move all terms to the left:

7-(4(y+7)+3y)=0



We calculate terms in parentheses: -(4(y+7)+3y), so:

4(y+7)+3y

We add all the numbers together, and all the variables

3y+4(y+7)

We multiply parentheses

3y+4y+28

We add all the numbers together, and all the variables

7y+28

Back to the equation:

-(7y+28)



We get rid of parentheses

-7y-28+7=0

We add all the numbers together, and all the variables

-7y-21=0

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

-7y=21

y=21/-7

y=-3

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