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Can anyone give me any insight to how to do this problem?

 Aug 19, 2020
 #1
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20x - 10 + 14x - 19 = 90

 

x = 3.5

 

∠DAB = 180 - ( 14x - 19 ) = 150

 Aug 19, 2020
edited by Dragan  Aug 19, 2020

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