Răspuns :
a/../../../../../../../../../+6
b/../
a=9b+6
9b+b+6=76
10b=76-6=70
b=70:10
b=7
a=7x9+6
a=63+6=69
verificare
69+7=76
69:6=9rest6
b/../
a=9b+6
9b+b+6=76
10b=76-6=70
b=70:10
b=7
a=7x9+6
a=63+6=69
verificare
69+7=76
69:6=9rest6