May 2021 0 33 Report
Primero elimina los paréntesis y luego resuelve las sumas algebraicas: a) -2 + (-5 - 1) - 3 + (-2 + 6) =
b) (4 + 3 - 1) - (9 - 7 - 4) + (-6 - 2)=
c) 4 - (-15 + 12) + (-9 + 8 + 7) + (9 - 15) + 10 =
d) 3 + (-5) - (-2 + 7 - 1) - 5=
e) - (-2 + 5 - 3) - (-6 + 7) + (-1 + 9) =
f) 10 + 9 + 6 - 12 + (-7 + 4 - 3) - (-2 + 5 - 9)=
me serviría mucho su ayuda:D​

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