Answer:
m∠QKJ = 75°
Explanation:
(5x - 9) + (-6 + 9x) = 111
-15 + 14x = 111
14x = 126
x = 9
m∠QKJ = -6 + 9(9) = 75
75
5x-9+9x-6=111
14x-15=111
14x= 126
x=9
-6+9(9)= 75
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