Answer:
x = 105°
Explanation:
Every triangle is equal to 180°. You can find two angles in the triangle in which the x angle is located.
To find the right lower angle, subtract 65 and 90 from 180, to get 25. Then find the lower left angle by subtracting 50 and 80 from 180, to get 50.
You now know that two angles in the overlapped triangle are 50 and 25, which you can subtract from 180 to find the final angle, 105°.
Hope this helped!