kyriem kyriem
  • 01-10-2019
  • Mathematics
contestada

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3) y = 5x - 2
x + 4y = 8
Explain:​

Respuesta :

BasketballEinstein
BasketballEinstein BasketballEinstein
  • 02-10-2019

Answer:

[tex][\frac{16}{21}, 1\frac{17}{21}][/tex]

Step-by-step explanation:

{y = 5x - 2

{x + 4y = 8

Use the Substitution Method:

x + 4[5x - 2] = 8

x + 20x - 8 = 8

21x - 8 = 8

+ 8 + 8

__________

21x = 16

____ __

21 21

x = 16⁄21 [Plug this back into both equations above to get the y-coordinate of 1 17⁄21]; 1 17⁄21 = y

I am joyous to assist you anytime.

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