90n=(n-2)180

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Solution for 90n=(n-2)180 equation: 



90n=(n-2)180

We move all terms to the left:

90n-((n-2)180)=0



We calculate terms in parentheses: -((n-2)180), so:

(n-2)180

We multiply parentheses

180n-360

Back to the equation:

-(180n-360)



We get rid of parentheses

90n-180n+360=0

We add all the numbers together, and all the variables

-90n+360=0

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

-90n=-360

n=-360/-90

n=+4

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