-4y+21=5(y+6)

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Solution for -4y+21=5(y+6) equation: 



-4y+21=5(y+6)

We move all terms to the left:

-4y+21-(5(y+6))=0



We calculate terms in parentheses: -(5(y+6)), so:

5(y+6)

We multiply parentheses

5y+30

Back to the equation:

-(5y+30)



We get rid of parentheses

-4y-5y-30+21=0

We add all the numbers together, and all the variables

-9y-9=0

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

-9y=9

y=9/-9

y=-1

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