Answer:
25 (i may be wrong but im fairly sure thats correct look at my working)
Explanation:
Triangle Interior angles add up to 180
Right triangle:
180 - 53 - 80 = 47
Left Triangle 180 - 50 - 62 = 68
Angle opposite X = 180 - 68 - 47 = 65
The last 2 angles to the left and right of X:
interior of 4 sided shape = 360
360-62-50-133 (180-47 flat line) = 155
360 - 53 - 80 - 112 (180-68 flat line) = 115
Full circle = 360
so
360 - 115 - 155 - 65 = 25 x = 25