SOLUTION: find the measure of an angle if its measure is 18 more then its supplement

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Question 807648: find the measure of an angle if its measure is 18 more then its supplement
Answer by fcabanski(1391) About Me  (Show Source):
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An angle and its supplement, when added, equal 180 degrees.


Call the supplement x. Call the angle x+18.


x+x+18 = 180


2x = 162


x = 81 degrees.


The angle is 81 + 18 = 99 degrees.