-12=-3(y+13)

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Solution for -12=-3(y+13) equation: 



-12=-3(y+13)

We move all terms to the left:

-12-(-3(y+13))=0



We calculate terms in parentheses: -(-3(y+13)), so:

-3(y+13)

We multiply parentheses

-3y-39

Back to the equation:

-(-3y-39)



We get rid of parentheses

3y+39-12=0

We add all the numbers together, and all the variables

3y+27=0

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

3y=-27

y=-27/3

y=-9

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