perez81leti
perez81leti perez81leti
  • 15-03-2021
  • Mathematics
contestada

first think of the pairs of numbers that add 9 then subtract to 7
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Respuesta :

GeorgeFocus
GeorgeFocus GeorgeFocus
  • 15-03-2021

Step-by-step explanation:

x+9-7

x+2?????????????

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