24bogarb 24bogarb
  • 27-03-2020
  • Mathematics
contestada

8x + 2y = 80
4x + 2y = 52

Respuesta :

zoem24
zoem24 zoem24
  • 27-03-2020

Answer:   ( 7 , 12 )    x = 7, y = 12

Step-by-step explanation:

use the method of elimination

    8x + 2

-   4x + 2y = 52

    4x = 28

     x = 7

plug it back into one of the original equations

8x + 2y = 80

8(7) + 2y = 80

56 + 2y = 80

2y = 24

y = 12

(7, 12)

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