m < ABD = 38 degrees ( alternate angles)
So m angle ADB = 180 - 2(38) = 180-76 = 104 degrees ( because triangle ADB is isosceles)
By the same reasoning and since triangle ADB and CDB are congruent we get m < CDB = 104 degrees
Therfore m < x = 360 - 2*104 = 152 degrees Answer