172=(n-2)*180/n

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Solution for 172=(n-2)*180/n equation: 



172=(n-2)*180/n

We move all terms to the left:

172-((n-2)*180/n)=0



Domain of the equation: n)!=0

n!=0/1

n!=0

n∈R



We multiply all the terms by the denominator


-((n-2)*180+172*n)=0



We calculate terms in parentheses: -((n-2)*180+172*n), so:

(n-2)*180+172*n

We add all the numbers together, and all the variables

172n+(n-2)*180

We multiply parentheses

172n+180n-360

We add all the numbers together, and all the variables

352n-360

Back to the equation:

-(352n-360)



We get rid of parentheses

-352n+360=0

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

-352n=-360

n=-360/-352

n=1+1/44

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