x=(7x+90)

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Solution for x=(7x+90) equation: 



x=(7x+90)

We move all terms to the left:

x-((7x+90))=0



We calculate terms in parentheses: -((7x+90)), so:

(7x+90)

We get rid of parentheses

7x+90

Back to the equation:

-(7x+90)



We get rid of parentheses

x-7x-90=0

We add all the numbers together, and all the variables

-6x-90=0

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

-6x=90

x=90/-6

x=-15

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