Răspuns :
a:b=9 rest 17
a=b×9+17
a=9b+17
a-b=769
9b+17-b=769
9b-b=769-17
8b=752
b=752:8
b=94
a=9b+17
a=9×94+17
a=846+17
a=863
a=b×9+17
a=9b+17
a-b=769
9b+17-b=769
9b-b=769-17
8b=752
b=752:8
b=94
a=9b+17
a=9×94+17
a=846+17
a=863