Question 202912
{{{s=(n-2)*180}}}
<pre><font size = 4 color = "indigo"><b>
Solve for n:

Write the 180 on the left of the parentheses:

{{{s=180(n-2)}}}

Distribute:

{{{s=180n-360}}}

Add 360 to both sides:

{{{s+360=180n}}}

Divide both sides by 180

{{{(s+360)/180=n}}}

or turning it around:

{{{n=(s+360)/180}}}

Edwin</pre>