Answer:
117°
Explanation:
y° = 180° - 48° - 44°
y° = 88°
since opposite angles are equal,
2z° + 2y° = 360°
2z + (2*88)° = 360°
2z° = 360°-176°
2z° = 184°
z° = 92°
Now, check the picture attached.
44° + a° + 87° = 180°
a = 49°
Now, a° + b° + z ° = 180°
b° = 180° - 49° - 92°
b = 39°
a quadrilateral has four angles that sums up to 360°
thus,
117° + (39° + 48°) + (44° + 49°) + (c° + 39°) = 360°
c° + 39° = 63°
c° = 24°
Finally,
c° + b° + x° = 180°
x° = 180° - 24° - 39°
x° = 117°