.
Let x be "the angle".
Then its supplementary angle measure is 180-x degrees,
so an equation to find x is
(180-x) - x = 18.8.
written exactly as you read the problem. From this equation,
180 - 18.8 = 2x
x = = 80.6 degrees.
ANSWER. The angles are 80.6 degrees and 180-80.6 = 99.4 degree.
Solved.
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