Răspuns :
a+b=220
b+c=588
a+c=438
a=220-b
c=588-b
220-b+588-b=438
808-438=b+b
370=2b
b=370:2
b=185
a+185=220
a=220-185
a=35
185+c=588
c=588-185
c=403
b+c=588
a+c=438
a=220-b
c=588-b
220-b+588-b=438
808-438=b+b
370=2b
b=370:2
b=185
a+185=220
a=220-185
a=35
185+c=588
c=588-185
c=403