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  • 18-11-2019
  • Mathematics
contestada

X+y=2, -3x-y=5
Solve

Respuesta :

BasketballEinstein
BasketballEinstein BasketballEinstein
  • 18-11-2019

Answer:

[tex][-3\frac{1}{2}, 5\frac{1}{2}][/tex]

Step-by-step explanation:

{−3x - y = 5

{x + y = 2

________

[tex]\frac{-2x}{-2} = \frac{7}{-2}[/tex]

[tex]x = -3\frac{1}{2}[/tex][Plug this back into both equations above to get the y-coordinate of [tex]5\frac{1}{2}][/tex]; [tex]5\frac{1}{2} = y[/tex]

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