Answer:
y = 6°
m∠7 = 20°
Step-by-step explanation:
Vertical angles means that the value is the same
2(3y-8) = 5(16-2y)
6y - 16 = 80 - 10y
16y - 16 = 80
16y = 96
y = 6°
m∠7 = 2(3*6 - 8)
m∠7 = 2(18-8)
m∠7 = 2(10)
m∠7 = 20
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