Answer:
y = 14°
Explanation:
since we can see it is an isosceles triangle so
base angles of isosceles triangle are equal then
2x = 50°
50° + 2x + 5y + 10° = 180° { being sum of angles of triangle }
50° + 50° + 5y + 10° = 180°
110° + 5y = 180°
5y = 180° - 110°
5y = 70°
y = 14°
Hope it will help :)