20)
angle AED + angle DEC = 180°........(linear pair)
so,
y-12 + 3y - 8 = 180°
4y - 20 = 180°
4y = 200°
y = 50°
Similarly,
6x -32 + 2x - 20 = 180°
8x -52= 180
8x = 232
x = 29°
hope it helps, I don't have much time now
