Respuesta :

Answer:

O 9

Step-by-step explanation:

Subtracting a negative turns it into addition. So this becomes 20 + 3 - 10 - 6 + 3 + 2 - 3.

Going through this problem looks like this: 23 - 10, 13 - 6, 7 + 3, 10 + 2, 12 - 3. And you get 9.

Answer:

the answer is 9.

Step-by-step explanation: