1800=(n-2)*180

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



1800=(n-2)*180
We move all terms to the left:
1800-((n-2)*180)=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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