(n-2)180+360=900

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Solution for (n-2)180+360=900 equation: 



(n-2)180+360=900

We move all terms to the left:

(n-2)180+360-(900)=0

We add all the numbers together, and all the variables

(n-2)180-540=0

We multiply parentheses

180n-360-540=0

We add all the numbers together, and all the variables

180n-900=0

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

180n=900

n=900/180

n=5

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