MatemáticasBásico1 respuestas

Ayuda?

Ayuda! (X + y = - 1 - 2x + y = 5 ) Metodo de igualación.

En resumen

<img src="https://tex.z-dn.net/?f=x%2By%20%3D-1%0A%0A%0Ax%3D-1-y........................................%281%29%0A%0A-----------------------------%0A%0A-2x%2By%3D5%0A%0Ay-5%3D2x%0A%0Ay-5%2F2%3Dx.................................

Mejor respuesta

Silvanavelez
7

ResolucióN

<img src="https://tex.z-dn.net/?f=x%2By%20%3D-1%0A%0A%0Ax%3D-1-y........................................%281%29%0A%0A-----------------------------%0A%0A-2x%2By%3D5%0A%0Ay-5%3D2x%0A%0Ay-5%2F2%3Dx.................................%282%29%0A%0A--------------------------------------------------%0A%0AIgualar%201%20y%202%0A%0A-1-y%3D%20y-5%2F2%0A%0A2.%28-1-y%29%3Dy-5%0A%0A-2-2y%3Dy-5%0A%0A-2%2B5%3D2y-y%0A%0A%5C%5C%20%5C%5C%20%5Cboxed%7B3%3Dy%7D%7D%0A%0A%0A---------------------------------------------%0A%0ARemplazamos%20%20para%20hallar%20x%0A%0Ax%3D-1-y%0A%0Ax%3D-1-%283%29%0A%0Ax%3D-1-3%0A%0A%5C%5C%20%5C%5C%20%5Cboxed%7Bx%3D-4%7D%7D%0A" />.