(n-2)180/n=140

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



(n-2)180/n=140

We move all terms to the left:

(n-2)180/n-(140)=0



Domain of the equation: n!=0

n∈R



We multiply all the terms by the denominator


(n-2)180-140*n=0

We add all the numbers together, and all the variables

-140n+(n-2)180=0

We multiply parentheses

-140n+180n-360=0

We add all the numbers together, and all the variables

40n-360=0

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

40n=360

n=360/40

n=9

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