Answer:
x = 30°, y = 90°
Step-by-step explanation:
[tex](y + x) + (y - x) = 180 \\ 2y = 180 \\ y = 90 \\ [/tex]
[tex]2x + y + x = 180 \\ 3x + 90 = 180 \\ 3x = 90 \\ x = 30[/tex]
