12-02-2021
Mathematics

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Respuesta :

jmonster2015 jmonster2015

12-02-2021

Answer:

c

Step-by-step explanation:

CAN I GET BRAINLESEST

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jeffkotnis jeffkotnis

05-03-2021

Answer: D

Step-by-step explanation:A. 40-40=0

B. 30-30=0

C.-20+20=0

D.20+20=40

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