9(-7x-4)=-9(-8+x)

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Solution for 9(-7x-4)=-9(-8+x) equation: 



9(-7x-4)=-9(-8+x)

We move all terms to the left:

9(-7x-4)-(-9(-8+x))=0

We add all the numbers together, and all the variables

9(-7x-4)-(-9(x-8))=0

We multiply parentheses

-63x-(-9(x-8))-36=0



We calculate terms in parentheses: -(-9(x-8)), so:

-9(x-8)

We multiply parentheses

-9x+72

Back to the equation:

-(-9x+72)



We get rid of parentheses

-63x+9x-72-36=0

We add all the numbers together, and all the variables

-54x-108=0

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

-54x=108

x=108/-54

x=-2

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