Răspuns :
a-b =102
a/b =2 r 17 ; a=2b+17
2b+17 - b = 102
b=102-17
b =85
a=2b+17
a=2*85 +17
a=170+17 =187
verif ; 187-85 =102
a/b =2 r 17 ; a=2b+17
2b+17 - b = 102
b=102-17
b =85
a=2b+17
a=2*85 +17
a=170+17 =187
verif ; 187-85 =102