3x = 60 + 45 + K.360^o
3x = 105 + K.360^o
x = 35 + 120^oK
K= 0 --> x = 35 + 120.0
--> x = 35 + 0 = 35 (memenuhi)
K = 1 --> x = 35 + 120.1
x = 35 + 120
x = 155^o
K = 2 --> x = 35 + 120.2
x = 35 + 240
x = 275 (memenuhi)
K = 3 --> x = 35 + 120.3