Respuesta :

paradigmic

Answer:

Step-by-step explanation:

Sally owes 7 dollars to Matthew. She opens her piggy bank and takes out 7 dollars. Now, how much money does she owe to Matthew?

-7 + 7 = 0

-7 + 7 is the same as  7 - 7

You can clearly see that 7-7 is 0.

iadorelearning2468

Answer:

You are in debt of $7. You pay the bank $7. How many money do you owe now?