-129=-3x-3(-7x-11)

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Solution for -129=-3x-3(-7x-11) equation: 



-129=-3x-3(-7x-11)

We move all terms to the left:

-129-(-3x-3(-7x-11))=0



We calculate terms in parentheses: -(-3x-3(-7x-11)), so:

-3x-3(-7x-11)

We multiply parentheses

-3x+21x+33

We add all the numbers together, and all the variables

18x+33

Back to the equation:

-(18x+33)



We get rid of parentheses

-18x-33-129=0

We add all the numbers together, and all the variables

-18x-162=0

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

-18x=162

x=162/-18

x=-9

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