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x+y=180

x=180-y

x=21+2y

180-y=21+2y

180=21+3y

3y=159

y=53degrees

x=180-23

x=157degrees

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โˆ™ 2009-05-31 01:32:53
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Q: The measure of an angle is 21 degrees more than twice its supplementFind the measure of each angle?
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