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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

-(-(y+3))+75=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

1y+3+75=0

We add all the numbers together, and all the variables

y+78=0

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

y=-78

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