a + b + c = 220
(a + b) - c = 44 ⇒ a + b = 44 + c
(b + c) - a = 102 ⇒ b + c = 102 + a
Inlocuim :
44+ c + c = 220
44 + 2c = 220
2c= 220 - 44
2c = 176
c = [tex] \frac{176}{2} =88[/tex]
a + 102 + a = 220
2a + 102 = 220
2a = 220 - 102
2a= 118
a = [tex] \frac{118}{2} =59[/tex]
59 + b + 88= 220
b + 147 = 220
b = 220 - 147
b= 73