Respuestas

2012-04-02T20:49:28+02:00

{5x - 3y = -4 | x 2

{4x + 2y = 10 | x 3

 

{10x - 6y = -8

{12x + 6y = 30

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-2x = 22 |: (-2)

x = -11

 

5x - 3y = -4

5 x (-11) - 3y = -4

-55 - 3y = -4

-3y = -4 + 55

-3y = 51 |: (-3)

y = -17

 

{x = -11

{y = -17