MatemáticasBásico1 respuestas

2x + 5y = - 248x - 3y = 19( Metodo de igualacion)?

2x + 5y = - 24 8x - 3y = 19 ( Metodo de igualacion).

En resumen

( Método de igualación) 2x + 5y = - 24 8x - 3y = 19 <img src="https://tex.z-dn.net/?f=2x%20%2B5y%20%3D%20-24%0A" /> <img src="https://tex.z-dn.net/?f=y%3D%5Cfrac%7B-24-2x%7D%7B5%7D..........%281%29" /> <img src="https://tex.z-dn.net/?

Mejor respuesta

Axel4561
7

( Método de igualación)

2x + 5y = - 24

8x - 3y = 19

<img src="https://tex.z-dn.net/?f=2x%20%2B5y%20%3D%20-24%0A" />

<img src="https://tex.z-dn.net/?f=y%3D%5Cfrac%7B-24-2x%7D%7B5%7D..........%281%29" />

<img src="https://tex.z-dn.net/?f=8x-3y%3D19%0A%0A%0A" />

<img src="https://tex.z-dn.net/?f=%5Cquad%20y%3D-%5Cfrac%7B19-8x%7D%7B3%7D..........%282%29" />

Igualar (1) y (2)

<img src="https://tex.z-dn.net/?f=%5Cfrac%7B-24-2x%7D%7B5%7D%3D-%5Cfrac%7B19-8x%7D%7B3%7D" />

<img src="https://tex.z-dn.net/?f=%5Cleft%28-24-2x%5Cright%29%5Ccdot%20%5C%3A3%3D-5%5Cleft%2819-8x%5Cright%29" />

<img src="https://tex.z-dn.net/?f=-72-6x%3D-95%2B40x%0A%0A" />

<img src="https://tex.z-dn.net/?f=x%3D%5Cfrac%7B1%7D%7B2%7D%5Cquad%20" />

Hallar y :

<img src="https://tex.z-dn.net/?f=y%3D%5Cfrac%7B-24-2x%7D%7B5%7D" />

<img src="https://tex.z-dn.net/?f=y%3D%20%5Cfrac%7B-24-2%5Ccdot%20%5Cleft%28%5Cfrac%7B1%7D%7B2%7D%5Cright%29%7D%7B5%7D" />

[img = 10]

[img = 11].