Respuestas
Respuesta dada por:
3
espero te ayude si tienes dudas me preguntas
Adjuntos:
![](https://es-static.z-dn.net/files/d5c/24d5294ae4cafc74e58670e06f363161.jpg)
Anónimo:
xD
Respuesta dada por:
2
Lo resolvemos por método de eliminación.
![\left \{ {{3x-5y=-19} \atop {2x+3y=19}} \right. \left \{ {{3x-5y=-19} \atop {2x+3y=19}} \right.](https://tex.z-dn.net/?f=+%5Cleft+%5C%7B+%7B%7B3x-5y%3D-19%7D+%5Catop+%7B2x%2B3y%3D19%7D%7D+%5Cright.+)
![x3 y x5 x3 y x5](https://tex.z-dn.net/?f=x3+y+x5)
![================================================= =================================================](https://tex.z-dn.net/?f=%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D)
![3(3x - 5y) = 3(-19)
3(3x - 5y) = 3(-19)](https://tex.z-dn.net/?f=3%283x+-+5y%29+%3D+3%28-19%29%0A)
![5(2x + 3y) = 5(19) 5(2x + 3y) = 5(19)](https://tex.z-dn.net/?f=5%282x+%2B+3y%29+%3D+5%2819%29)
![=========== ===========](https://tex.z-dn.net/?f=%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D)
Sumamos para que se eliminé el "15y".
![10x + 15y = 95 10x + 15y = 95](https://tex.z-dn.net/?f=10x+%2B+15y+%3D+95)
![----- -----](https://tex.z-dn.net/?f=-----)
![19x = 38 19x = 38](https://tex.z-dn.net/?f=19x+%3D+38)
![x = 2 x = 2](https://tex.z-dn.net/?f=x+%3D+2)
![============================== ==============================](https://tex.z-dn.net/?f=%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D)
Reemplazamos "x".
![2x + 3y = 19 2x + 3y = 19](https://tex.z-dn.net/?f=2x+%2B+3y+%3D+19)
![4 + 3y = 19 4 + 3y = 19](https://tex.z-dn.net/?f=4+%2B+3y+%3D+19)
![3y = 15 3y = 15](https://tex.z-dn.net/?f=3y+%3D+15)
![y = 5 y = 5](https://tex.z-dn.net/?f=y+%3D+5+)
![=================================== ===================================](https://tex.z-dn.net/?f=%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D)
![Sol : Sol :](https://tex.z-dn.net/?f=Sol+%3A+)
![x = 2 x = 2](https://tex.z-dn.net/?f=x+%3D+2)
![y = 5 y = 5](https://tex.z-dn.net/?f=y+%3D+5+)
Reemplazamos "x".
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