jolen3a
jolen3a jolen3a
  • 14-12-2021
  • Mathematics
contestada

x-5y=16 , 4x-2y=-8 solve using elimination method

Respuesta :

luisecubero77
luisecubero77 luisecubero77
  • 14-12-2021

Answer:

x = -4

y = -4

Step-by-step explanation:

L1     x - 5y = 16

L2  4x - 2y = -8

4*L1 - L2

4x - 20y = 64

-4x + 2y  =    8

-----------------------

      -18y = 72

          y = 72 / -18

          y = -4

x - 5y = 16

x = 16 + 5y

x = 16 + 5(-4)

x = 16 - 20

x = -4

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