4=(x+8x)

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Solution for 4=(x+8x) equation: 



4=(x+8x)

We move all terms to the left:

4-((x+8x))=0

We add all the numbers together, and all the variables

-((+9x))+4=0



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

(+9x)

We get rid of parentheses

9x

Back to the equation:

-(9x)



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

-9x=-4

x=-4/-9

x=4/9

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