Respuesta:
-4+(-13)= -17
(-9)+(+12)= 3
-30+(+20)= -10
8+(-8)= 0
-2+(+2)= 0
10+(-10)= 0
Explicación paso a paso:
:')
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Respuesta:
-4+(-13)= -17
(-9)+(+12)= 3
-30+(+20)= -10
8+(-8)= 0
-2+(+2)= 0
10+(-10)= 0
Explicación paso a paso:
:')