Find WX.
Two tangents drawn to a circle from a point outside the circle have equal lengths.....therefore
XW = XY
7x - 29 = 2x + 16
7x - 2x = 16 + 29
5x = 45
x = 45 / 5 = 9
WX = 7(9) - 29 = 63 - 29 = 34