Question

Verify whether a + b = b + a for a = -7 and b = 15.

Answer 1

Answer:

-7+15=15+-7

8=8

I think the answer is done.

Answer 2

Step-by-step explanation:

to prove that: a+b=b+a

a+b= -7+15

= 8

b+a= 15 + (-7)

= 15-7

= 8 = a+b = b+a