Respuesta :

Answer:

Q2

a) 8 + - 8 = 0

b) -20 + 20 = 0

c) a+ - a = 0

Q3

3) Identity property

Answer:

1) 8 + - 8 = 0

2) -20 + 20 = 0

3) a+ - a = 0

Q3

3) Identity property

Step-by-step explanation: