Y+3(y+7)=21+(y+3y)

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Solution for Y+3(y+7)=21+(y+3y) equation: 



+3(Y+7)=21+(Y+3Y)

We move all terms to the left:

+3(Y+7)-(21+(Y+3Y))=0

We add all the numbers together, and all the variables

3(Y+7)-(21+(+4Y))=0

We multiply parentheses

3Y-(21+(+4Y))+21=0



We calculate terms in parentheses: -(21+(+4Y)), so:

21+(+4Y)

determiningTheFunctionDomain
(+4Y)+21

We get rid of parentheses

4Y+21

Back to the equation:

-(4Y+21)



We get rid of parentheses

3Y-4Y-21+21=0

We add all the numbers together, and all the variables

-Y=0

Y=0/-1

Y=0

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