Respuesta :

manabidrai

Answer:

ummmmmmmmm it's: 1+1=3

Answer:

- 5 and 12

Step-by-step explanation:

Using the rules

- (-) = + , + (-) = -

- 7 - (- 5) + (- 3)

= - 7 + 5 - 3

= - 2 - 3

= - 5

--------------------------------

9 - (- 7) + (- 4)

= 9 + 7 - 4

= 16 - 4

= 12

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