mikaikaa
mikaikaa mikaikaa
  • 03-11-2020
  • Mathematics
contestada

plz explain how to solve
-12 - (-21) i already know the answer but i need to show work thx

Respuesta :

gr00vinmax gr00vinmax
  • 03-11-2020
change the subtraction sign and the negative from -21 to addition
-12 + (+21) =9
Answer Link

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