180*(n-2)=90*n

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Solution for 180*(n-2)=90*n equation:


180*(n-2)=90*n

We simplify the equation to the form, which is simple to understand 
180*(n-2)=90*n

Reorder the terms in parentheses
+(+180n-360)=+90n

Remove unnecessary parentheses
+180n-360=+90n

We move all terms containing n to the left and all other terms to the right. 
+180n-90n=+360

We simplify left and right side of the equation. 
+90n=+360

We divide both sides of the equation by 90 to get n. 
n=4

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