x° + 2y° = 180° ⇒ 2y° = 180° - x°
x° = 60° {three sides of the same lengh, means three angles=60°}
2y° = 180° - 60°
2y° = 120°
y° = 60°
Answer: I think is 3.5
Step-by-step explanation:
-18 + 9 = -9
-9 = -9
If you're looking for false or true.
The answer would be true