cchic879 cchic879
  • 25-02-2021
  • Mathematics
contestada

re write the expressoin-21+7

Respuesta :

kuiatetherese
kuiatetherese kuiatetherese
  • 25-02-2021

Answer:

7-21

Step-by-step explanation:

if -a+b

is thesame according to laws of integers as

b-a

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