-3x-12=-(x+3)-1

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Solution for -3x-12=-(x+3)-1 equation: 



-3x-12=-(x+3)-1

We move all terms to the left:

-3x-12-(-(x+3)-1)=0



We calculate terms in parentheses: -(-(x+3)-1), so:

-(x+3)-1

We get rid of parentheses

-x-3-1

We add all the numbers together, and all the variables

-1x-4

Back to the equation:

-(-1x-4)



We get rid of parentheses

-3x+1x+4-12=0

We add all the numbers together, and all the variables

-2x-8=0

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

-2x=8

x=8/-2

x=-4

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