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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

-(6x-3(-10))+159=0



We calculate terms in parentheses: -(6x-3(-10)), so:

6x-3(-10)

We add all the numbers together, and all the variables

6x+30

Back to the equation:

-(6x+30)



We get rid of parentheses

-6x-30+159=0

We add all the numbers together, and all the variables

-6x+129=0

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

-6x=-129

x=-129/-6

x=21+1/2

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