3y+21=4(2y-7)

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Solution for 3y+21=4(2y-7) equation: 



3y+21=4(2y-7)

We move all terms to the left:

3y+21-(4(2y-7))=0



We calculate terms in parentheses: -(4(2y-7)), so:

4(2y-7)

We multiply parentheses

8y-28

Back to the equation:

-(8y-28)



We get rid of parentheses

3y-8y+28+21=0

We add all the numbers together, and all the variables

-5y+49=0

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

-5y=-49

y=-49/-5

y=9+4/5

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