((n-2)*180)/n=1800/n

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Solution for ((n-2)*180)/n=1800/n equation: 



((n-2)*180)/n=1800/n

We move all terms to the left:

((n-2)*180)/n-(1800/n)=0



Domain of the equation: n!=0

n∈R





Domain of the equation: n)!=0

n!=0/1

n!=0

n∈R



We add all the numbers together, and all the variables

((n-2)*180)/n-(+1800/n)=0

We get rid of parentheses

((n-2)*180)/n-1800/n=0

We multiply all the terms by the denominator


((n-2)*180)-1800=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

180n-360-1800=0

We add all the numbers together, and all the variables

180n-2160=0

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

180n=2160

n=2160/180

n=12

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