7(12-y)=-(y-3)

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Solution for 7(12-y)=-(y-3) equation: 



7(12-y)=-(y-3)

We move all terms to the left:

7(12-y)-(-(y-3))=0

We add all the numbers together, and all the variables

7(-1y+12)-(-(y-3))=0

We multiply parentheses

-7y-(-(y-3))+84=0



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

-(y-3)

We get rid of parentheses

-y+3

We add all the numbers together, and all the variables

-1y+3

Back to the equation:

-(-1y+3)



We get rid of parentheses

-7y+1y-3+84=0

We add all the numbers together, and all the variables

-6y+81=0

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

-6y=-81

y=-81/-6

y=13+1/2

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