Respuesta :
Answer:
40+-40
Step-by-step explanation:
when you add 40 to a negative 40 is =0
Answer:
15+-15=0 or -15+15=0
Step-by-step explanation:
you can do this with any number, just add its opposite.
Answer:
40+-40
Step-by-step explanation:
when you add 40 to a negative 40 is =0
Answer:
15+-15=0 or -15+15=0
Step-by-step explanation:
you can do this with any number, just add its opposite.