Respuesta :
Answer:
19
Step-by-step explanation:
-(-9) becomes 9 because the negative in front of the parenthesis is just a negative one that is multiplied with the negative nine, making it a positive nine. This makes the problem 10+9
Answer:
19
Step-by-step explanation:
[tex]10-(-9)\\\\10+9\\\\\boxed{19}[/tex]
Hope this helps.
