((-9)x)-9=1

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Solution for ((-9)x)-9=1 equation: 



((-9)x)-9=1

We move all terms to the left:

((-9)x)-9-(1)=0

We add all the numbers together, and all the variables

((-9)x)-10=0



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

(-9)x

We multiply parentheses

-9x

Back to the equation:

+(-9x)



We get rid of parentheses

-9x-10=0

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

-9x=10

x=10/-9

x=-1+1/9

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