9-3x=-(1+8x)

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Solution for 9-3x=-(1+8x) equation: 



9-3x=-(1+8x)

We move all terms to the left:

9-3x-(-(1+8x))=0

We add all the numbers together, and all the variables

-3x-(-(8x+1))+9=0



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

-(8x+1)

We get rid of parentheses

-8x-1

Back to the equation:

-(-8x-1)



We get rid of parentheses

-3x+8x+1+9=0

We add all the numbers together, and all the variables

5x+10=0

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

5x=-10

x=-10/5

x=-2

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