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LenKa [72]
3 years ago
13

What is the value of X

Mathematics
1 answer:
Dvinal [7]3 years ago
6 0
An exterior angle of a triangle is equal to the sum of the opposite interior 
angles

9x = 5x + 9 + x
9x = 6x + 9
9x - 6x = 9
3x = 9
x = 9/3
x = 3
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