12-9y+45=-(1-y)

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Solution for 12-9y+45=-(1-y) equation: 



12-9y+45=-(1-y)

We move all terms to the left:

12-9y+45-(-(1-y))=0

We add all the numbers together, and all the variables

-9y-(-(-1y+1))+12+45=0

We add all the numbers together, and all the variables

-9y-(-(-1y+1))+57=0



We calculate terms in parentheses: -(-(-1y+1)), so:

-(-1y+1)

We get rid of parentheses

1y-1

We add all the numbers together, and all the variables

y-1

Back to the equation:

-(y-1)



We get rid of parentheses

-9y-y+1+57=0

We add all the numbers together, and all the variables

-10y+58=0

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

-10y=-58

y=-58/-10

y=5+4/5

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