140=(n-2)180/n

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Solution for 140=(n-2)180/n equation: 



140=(n-2)180/n

We move all terms to the left:

140-((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+140*n)=0



We calculate terms in parentheses: -((n-2)180+140*n), so:

(n-2)180+140*n

We add all the numbers together, and all the variables

140n+(n-2)180

We multiply parentheses

140n+180n-360

We add all the numbers together, and all the variables

320n-360

Back to the equation:

-(320n-360)



We get rid of parentheses

-320n+360=0

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

-320n=-360

n=-360/-320

n=1+1/8

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