7+X=8x-(-9)

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



7+X=8X-(-9)

We move all terms to the left:

7+X-(8X-(-9))=0



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

8X-(-9)

We add all the numbers together, and all the variables

8X+9

Back to the equation:

-(8X+9)



We get rid of parentheses

X-8X-9+7=0

We add all the numbers together, and all the variables

-7X-2=0

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

-7X=2

X=2/-7

X=-2/7

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