Question

10 х - 3y = 36
2х+5y=-4 método de sustitución

Answer 1

Respuesta:

$10x - 3y = 36\\2x + 5y = - 4\\2 ( - 36 + 3y ) = 10 ( 4 - 5y )\\- 72 + 6y = 40 - 50y\\6y + 50y = 40 + 72\\56y = 112\\y = 2\\1rae : 10x = 36 - 2\\10x =34\\x = 34 / 10\\x = 3.4\\2da e : 2x = - 4 - 2\\2x = - 6\\x = - 6 / 2\\x = - 3\\Valores 1rae: x = 3.4\\y = 2\\2dae : x = - 3\\y = 2$

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