9x-9=(90-9x)+27

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Solution for 9x-9=(90-9x)+27 equation: 



9x-9=(90-9x)+27

We move all terms to the left:

9x-9-((90-9x)+27)=0

We add all the numbers together, and all the variables

9x-((-9x+90)+27)-9=0



We calculate terms in parentheses: -((-9x+90)+27), so:

(-9x+90)+27

We get rid of parentheses

-9x+90+27

We add all the numbers together, and all the variables

-9x+117

Back to the equation:

-(-9x+117)



We get rid of parentheses

9x+9x-117-9=0

We add all the numbers together, and all the variables

18x-126=0

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

18x=126

x=126/18

x=7

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