-179=3x+7(-x-21)

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Solution for -179=3x+7(-x-21) equation: 



-179=3x+7(-x-21)

We move all terms to the left:

-179-(3x+7(-x-21))=0

We add all the numbers together, and all the variables

-(3x+7(-1x-21))-179=0



We calculate terms in parentheses: -(3x+7(-1x-21)), so:

3x+7(-1x-21)

We multiply parentheses

3x-7x-147

We add all the numbers together, and all the variables

-4x-147

Back to the equation:

-(-4x-147)



We get rid of parentheses

4x+147-179=0

We add all the numbers together, and all the variables

4x-32=0

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

4x=32

x=32/4

x=8

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