Question

11. If a = -9 and b = -6, show that (a - b) +(b-a).
19​

Answer 1

Answer:

[A-B] + [A-B]

[-9-(-6) ] + [-9-6]

[-9+6] + [-15]

-3+ (-15)

-3-15

-18

Answer 2

Answer:

(a - b) + (b - a)

= {(-9) - (-6)} + {(-6) - (-9)}

= (-9 + 6) + (-6 + 9)

= (-3) + 3

= -3 + 3

= 0

(ANS)

The right answer is 0.