Răspuns :
a-b=993
a:b=9 rest 1
a=9b+1
9b+1-b=993
8b+1=993
8b=993-1=992
b=992:8=124
a=9b+1=9x124+1=1116+1=1117
1117-124=993(verificare)
a:b=9 rest 1
a=9b+1
9b+1-b=993
8b+1=993
8b=993-1=992
b=992:8=124
a=9b+1=9x124+1=1116+1=1117
1117-124=993(verificare)
a-b=993
a:b=9 rest 1
a=9b+1
9b+1-b=993
8b+1=993
8b=992 |:8
b=124
a=993+124
a=1117
a:b=9 rest 1
a=9b+1
9b+1-b=993
8b+1=993
8b=992 |:8
b=124
a=993+124
a=1117