Respuesta :

Answer:

15

Step-by-step explanation:

take 9 and divide by -3 and you get -3

then 21 divided by -7 is -3

so, you do -5 multiplied by -3 and get 15.

you can then take 15 and divide it by -3 and get 5

Answer:

The answer is 12

Step-by-step explanation: