14. Find x.

The inscribed angle subtended by arc CD is 126 degrees. The central angle subtended by arc CD is 2 * 126 = 252 degrees. The remaining arc is 360 - 252 = 108 degrees. The inscribed angle subtended by this arc is x. Therefore, x = 108 / 2 = 54 degrees. The angle 38 degrees is irrelevant.