jairoandres0922 jairoandres0922
  • 14-04-2021
  • Mathematics
contestada

encontar x y y de
3x + 2y =9
x + 3y=10

Respuesta :

user123768
user123768 user123768
  • 14-04-2021
X=-3y+10
3(-3y+10)+2y=9
-9y+30+2y=9
-7y+30=9
-7y=-21
y=3
X=-3(3)+10
X=1
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