90=(a+5)=(8a-5)

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Solution for 90=(a+5)=(8a-5) equation: 



90=(a+5)=(8a-5)

We move all terms to the left:

90-((a+5))=0



We calculate terms in parentheses: -((a+5)), so:

(a+5)

We get rid of parentheses

a+5

Back to the equation:

-(a+5)



We get rid of parentheses

-a-5+90=0

We add all the numbers together, and all the variables

-1a+85=0

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

-a=-85

a=-85/-1

a=+85

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