Gooseloeffler Gooseloeffler
  • 20-01-2020
  • Mathematics
contestada

2x + 3y = -2
3x - 2y = 23

Respuesta :

andresrobles6 andresrobles6
  • 20-01-2020

Answer:

x = 5

y = -4

Step-by-step explanation:

Por sustitución:

2x=-2-3y

2x/2=-2/2-3y/2

x=-2-3y/2

Reemplazo x en la segunda ecuación:

3(-2-3y/2)-2y=23

-6-9y/2-2y=23

-6-13y/2=23/2

-6-13y=46

-13y=52

y=-4

Reemplazo y  en x:

x=-2-3(-4)/2

x=-5(-4)/2

x=5

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