Question

If is an operation on integers
such that a A b = - a-b+ (-7)
for all integers a, b. Find the
value of
(i) 9 A (-5)
(ii) (-3) A (-8)​

Answer 1

Answer:

i) 9A(-5)= -9-(-5)+(-7)

= -9+5-7

=-16+5

=-11

ii) (-3)A(-8) = -(-3)-(-8)+(-7)

= 3+8-7

= 4