Answer:
y=3, x=65
Explanation:
Since there are little half circles on the angles, that means that they are the same value.
A triangle always adds up to 180 degrees.
You know that x + x + 50 = 180
That means that the 2 angles have to equal 130 degrees because 50+130=180.
If you divide 130 by 2 angles, you get 65 degrees per angle.
Finally, if you know that the two angles are equal, that means that the triangle is an isosceles triangle and the two side lengths are equal.
4y-2=10
4y-2+2=10+2
4y=12, y=3