Need i’m haveing a hard time with this one

We can Notice that AB = AC

We know that if Two sides of a Triangle are Equal then Angles corresponding to those Sides are Equal.

⇒ ∠ABC = ∠ACB

⇒ (5x)° = 25°

⇒ x° = 5°

We know that Sum of Three Angles in a Triangle is equal to 180°

⇒ 25° + (5x)° + (3y + 70)° = 180°

⇒ 25° + 25° + (3y)° + 70° = 180°

⇒ (3y)° + 120° = 180°

⇒ (3y)° = 180° - 120°

⇒ (3y)° = 60°

⇒ y° = 20°

i dont know i just need points