Question

2. For a = -12, b = 4, C = -25, find whether
(a) a and b are closed under addition
(c) at (b + c) = (a + b + c
(e) a-b=b-a
(b) a + b = b + a
(d) b and care dosed under subtraction​

Answer 1

Answer:

Step-by-step explanation:

SORRY BRO

Answer 2

Answer:

(a) a+b

=-12+4

=-8

it is the yes

(b) a+b=b+a

= -12+4=4+(-12)

-8=4-12

-8=-8

it is yes