Answer:
40°
Step–by–step explanation:
Sum of interior angles in a triangle = 180
:. 2y + y + 10 + 50 = 180
→ 3y + 60 = 180
+60 crosses over, and we have:
3y = 180 — 60 → 3y = 120
At this juncture, we divide by the coefficient of y, as shown below↓
[tex] \frac{3y}{3} = \frac{120}{3} [/tex]
Then, we have:
[tex] \frac{120}{3} = 40[/tex]
:. 40° is our final answer.
I hope this helps
