140=(n-2)*180

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


140=(n-2)*180

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

Reorder the terms in parentheses
140=(+180n-360)

Remove unnecessary parentheses
140=+180n-360

We move all terms containing n to the left and all other terms to the right. 
-180n=-360-140

We simplify left and right side of the equation. 
-180n=-500

We divide both sides of the equation by -0180 to get n. 
n=2.7777777777778

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