-257=8(1+7x)=-3x

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Solution for -257=8(1+7x)=-3x equation: 



-257=8(1+7x)=-3x

We move all terms to the left:

-257-(8(1+7x))=0

We add all the numbers together, and all the variables

-(8(7x+1))-257=0



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

8(7x+1)

We multiply parentheses

56x+8

Back to the equation:

-(56x+8)



We get rid of parentheses

-56x-8-257=0

We add all the numbers together, and all the variables

-56x-265=0

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

-56x=265

x=265/-56

x=-4+41/56

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