Răspuns :
a-b =211
a/b =6 r 21 ; a=6b+21
6b+21 -b =211
5b =211-21
5b =190
b =38
a =6b+21
a =6*38+21
a =228+21
a =249
verif ; 249-38 =211
a/b =6 r 21 ; a=6b+21
6b+21 -b =211
5b =211-21
5b =190
b =38
a =6b+21
a =6*38+21
a =228+21
a =249
verif ; 249-38 =211