-109=7x-8(8-x)

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Solution for -109=7x-8(8-x) equation: 



-109=7x-8(8-x)

We move all terms to the left:

-109-(7x-8(8-x))=0

We add all the numbers together, and all the variables

-(7x-8(-1x+8))-109=0



We calculate terms in parentheses: -(7x-8(-1x+8)), so:

7x-8(-1x+8)

We multiply parentheses

7x+8x-64

We add all the numbers together, and all the variables

15x-64

Back to the equation:

-(15x-64)



We get rid of parentheses

-15x+64-109=0

We add all the numbers together, and all the variables

-15x-45=0

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

-15x=45

x=45/-15

x=-3

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