Answer: y = 40deg, x = 80deg
Explanation:
1. Because we see that there are parallel lines in the triangle to the left, we know that two of the angles of that triangle are 50deg
2. using the fact that triangles have a total of 180deg we get x = 80deg
To solve for y, we also know that there are two angles in that triangle which are the same, and one of them is y, therefore 2y + 100deg = 180deg, meaning 7 = 40deg