find the value of x.
please help !!

Answer:
y = 120
Step-by-step explanation:
Interior angles of a triangle add up to 180°
So,
x+87+33 = 180
x + 120 = 180
Subtracting 120 to both sides
x = 180-120
x = 60°
Now
Angles on a straight line also add up to 180°
So,
x+y = 180
60 + y = 180
Subtracting 60 to both sides , we get
y = 180-60
y = 120