<PRE><B>Question 776982</B>
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The sum of the measures of an angle and its supplement is 180 degrees.  So if one of the angles measures *[tex \LARGE x] degrees, and the supplement is 78 degrees smaller, then the supplement must measure *[tex \LARGE x\ -\ 78].  But since the sum of the two angles must be 180:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ x\ +\ x\ -\ 78\ =\ 180]


Solve for *[tex \LARGE x], then calculate *[tex \LARGE x\ -\ 78]


John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
&lt;font face=&quot;Math1&quot; size=&quot;+2&quot;&gt;Egw to Beta kai to Sigma&lt;/font&gt;
My calculator said it, I believe it, that settles it
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