briannalane120
briannalane120 briannalane120
  • 26-04-2017
  • Mathematics
contestada

A system of equations is shown below. Find the solution by using substitution.

y=3x−2
y=x+2

a) (1, 2)

b) (3, 6)

c) (2, 4)

d) (-1, -1)

Respuesta :

BasketballEinstein
BasketballEinstein BasketballEinstein
  • 21-10-2019

Answer:

c) [tex](2, 4)[/tex]

Step-by-step explanation:

x + 2 = 3x - 2

-3x - 3x

___________

−2x + 2 = −2

- 2 - 2

_________

−4 = −2x

__ ___

−2 −2

[tex]2 = x[/tex] [Plug this back into both equations above to get the y-coordinate of 4]; [tex]4 = y[/tex]

I am joyous to assist you anytime.

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