haras11 haras11
  • 25-10-2019
  • Mathematics
contestada

(5x+2y=23
(13x+3y=51

Respuesta :

BasketballEinstein
BasketballEinstein BasketballEinstein
  • 27-10-2019

Answer:

[tex][3, 4][/tex]

Step-by-step explanation:

{5x + 2y = 23

{13x + 3y = 51

−5⁄13[13x + 3y = 51]

{5x + 2y = 23

{−5x - 1 2⁄13y = 19 8⁄13 >> New Equation

______________________

11⁄13y = 3 5⁄13

_____ ______

11⁄13 11⁄13

[tex]y = 4[/tex] [Plug this back into both equations above to get the x-coordinate of 3]; [tex]3 = x[/tex]

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