3 ms·
(7, 8) and (8, 7) are not possible because: If x = 2 then clearly (x, y) is not (7, 8) or (8, 7) because 2 is not 7 or 8. If x = y then (x, y) is (7, 7) or (8
by ihm 4y ago
(7, 8) and (8, 7) are not possible because:
If x = 2 then clearly (x, y) is not (7, 8) or (8, 7) because 2 is not 7 or 8.
If x = y then (x, y) is (7, 7) or (8, 8).