-9y+42=4(y-9)

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Solution for -9y+42=4(y-9) equation: 



-9y+42=4(y-9)

We move all terms to the left:

-9y+42-(4(y-9))=0



We calculate terms in parentheses: -(4(y-9)), so:

4(y-9)

We multiply parentheses

4y-36

Back to the equation:

-(4y-36)



We get rid of parentheses

-9y-4y+36+42=0

We add all the numbers together, and all the variables

-13y+78=0

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

-13y=-78

y=-78/-13

y=+6

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