-3-7x=-(x+9)

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Solution for -3-7x=-(x+9) equation: 



-3-7x=-(x+9)

We move all terms to the left:

-3-7x-(-(x+9))=0



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

-(x+9)

We get rid of parentheses

-x-9

We add all the numbers together, and all the variables

-1x-9

Back to the equation:

-(-1x-9)



We get rid of parentheses

-7x+1x+9-3=0

We add all the numbers together, and all the variables

-6x+6=0

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

-6x=-6

x=-6/-6

x=1

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