Răspuns :
a+b+c=589
a+b=468
c=b-122
468+c=589
c=589-468
c=121
b=c+122
b=121+122
b=243
a+b=468
a+243=468
a=468-243
a=225
a+b=468
c=b-122
468+c=589
c=589-468
c=121
b=c+122
b=121+122
b=243
a+b=468
a+243=468
a=468-243
a=225