-12=-2(3+y)

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Solution for -12=-2(3+y) equation: 



-12=-2(3+y)

We move all terms to the left:

-12-(-2(3+y))=0

We add all the numbers together, and all the variables

-(-2(y+3))-12=0



We calculate terms in parentheses: -(-2(y+3)), so:

-2(y+3)

We multiply parentheses

-2y-6

Back to the equation:

-(-2y-6)



We get rid of parentheses

2y+6-12=0

We add all the numbers together, and all the variables

2y-6=0

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

2y=6

y=6/2

y=3

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