you would add the measurement of ZVW to the measurement of UVZ and set it equal to UVW
x + 19 + 32 = 5x + 3
x + 51 = 5x + 3
48 = 4x
12 = x
then plug in 12 to the x for the equation of UVW
5(12) + 3 = UVW
60+3 = UVW
63 = UVW
the measurement of UVW is 63°