Respuesta :

Answer:

EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE

Step-by-step explanation:

Answer:

-9=n

Step-by-step explanation:

-13=4-n

+4 to both sides to get n by its self

-13+4=9

-13-4=9

-9=n