It's an equilateral triangle. The angles have measure 60°.
Therefore we have the equations:
6x + 6 = 60 subtract 6 from both sides
6x = 54 divide both sides by 6
x = 9
5y + 10 = 60 subtract 10 from both sides
5y = 50 divide both sides by 5
y = 10
Answer:
10. I just took the test
Step-by-step explanation:
