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What are the possible values of x?

 

 Sep 30, 2020
 #1
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hint: 3x-9 and 93 are supplementary...

 Sep 30, 2020
 #2
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Sides  a  and  a  do not necessarily form a straight line.     ( 1st case )

 

1st case:      3x - 9 = 90         x = 33

 

2nd case:      3x - 9 = 87        x = 32

 Sep 30, 2020

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