Question

10. If a = -9 and b= -6, show that (a - b)+(b-a).
11. If a = -8, b= -7,c =6, verify that (a + b) + C = a +(b + c).-​

Answer 1

Step-by-step explanation:

10.

(a-b)= -9 - (-6)=-9+6=-3

(b-a)= -6 - (-9)= -6+9=3

(a-b)+(b-a)=0

11.

(a+b)+c = (-8-7)+6=-15+6 = -9

a+ (b+c) = -8+ (-7+6)= -8-1=-9

both are equal

Answer 2

Step-by-step explanation:

l think this is the correct answer l hope it would be helpful