Respuesta:
a) -9
b) 19
c) -5
d) 7
e) 0
Explicación paso a paso:
a) (-7) + (-4) = -11
b) (+7) + (+12) = 19
(-7)+ (+2) = -5
(-5)+(+12) = 7
(-7) + (+7) = 0
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Respuesta:
a) -9
b) 19
c) -5
d) 7
e) 0
Explicación paso a paso:
Explicación paso a paso:
a) (-7) + (-4) = -11
b) (+7) + (+12) = 19
(-7)+ (+2) = -5
(-5)+(+12) = 7
(-7) + (+7) = 0