-159-6x=-3(-3x-7)

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Solution for -159-6x=-3(-3x-7) equation: 



-159-6x=-3(-3x-7)

We move all terms to the left:

-159-6x-(-3(-3x-7))=0



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

-3(-3x-7)

We multiply parentheses

9x+21

Back to the equation:

-(9x+21)



We get rid of parentheses

-6x-9x-21-159=0

We add all the numbers together, and all the variables

-15x-180=0

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

-15x=180

x=180/-15

x=-12

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