Răspuns :
a+b=69
a:b=7 r 5
a=7b+5
7b+5+b=69
8b=64
b=64:8=>b=8-nr doi
a=7b+5
a=7×8+5=56+5=>a=61 -primul nr
Proba:61+8=69
56:8=7 rest 5
a:b=7 r 5
a=7b+5
7b+5+b=69
8b=64
b=64:8=>b=8-nr doi
a=7b+5
a=7×8+5=56+5=>a=61 -primul nr
Proba:61+8=69
56:8=7 rest 5