Răspuns :
a+b+c=589
a+b=468
c=b-122
a+b+b-122=589
(a+b)+b-122=589
468+b-122=589
b=589+122-468
b=243
c=b-122
c=243-122
c=121
a+b=468
a+243=468
a=468-243
a=225
225+243+121=589
corect ?
a+b=468
c=b-122
a+b+b-122=589
(a+b)+b-122=589
468+b-122=589
b=589+122-468
b=243
c=b-122
c=243-122
c=121
a+b=468
a+243=468
a=468-243
a=225
225+243+121=589
corect ?
a+b+c=589
a+b=468
c=b 122
a+b+b -122=589
(a+b)+b-122=589
468+b-122=589
b=243
c=b-122
c=243-122
c=121
a+b=468
a+243=468
a=468-243
a=225
225+243+121=589
a+b=468
c=b 122
a+b+b -122=589
(a+b)+b-122=589
468+b-122=589
b=243
c=b-122
c=243-122
c=121
a+b=468
a+243=468
a=468-243
a=225
225+243+121=589