Question

Name the property.
(a) 19 + 63=63 + 19

(b) (20 + 3) +16 = 20 + {3 +16]

what is the answer

Answer 1

Answer:

Its a formula that is

Step-by-step explanation:

A. a+b=b+a

B. (a+b) +c = a + (b + c)