Respuesta :

smithkekoal970

Answer:

a + 2 = a-2

step-by-step explanation

Trikku
a+2 = a+2 has infinite solutions cuz put any value on a

a=-a+2 well, simplify
2a=2 (a=1)
Unique solution

a + 2 = a - 2
Simplify
4=0 not possible
a doesn’t have any value but just to be sure check d and tell me in the comments