makaylawest2005
makaylawest2005 makaylawest2005
  • 17-12-2018
  • Mathematics
contestada

PLEASE HELP!!


What is the solution of the system? Use substitution.

y = −3x

x + y = −4


A. (-2,-6)

B. (2, −6)

C. (2, 6)

D. (−2, 6)

PLEASE HELPWhat is the solution of the system Use substitutiony 3xx y 4A 26B 2 6C 2 6D 2 6 class=

Respuesta :

wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 17-12-2018

Answer:

x=2 ,y=-6

B (2,-6)

Step-by-step explanation:

y = -3x

x+y = -4

Substitute -3x for y in the second equation

x+y = -4

x+ (-3x) = -4

Combine like terms

-2x = -4

Divide by -2 on each side

-2x/-2 = -4/-2

x = 2

Now we still need to find y

y = -3x

Substitute x=2

y = -3(2)

y = -6

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