alanaforester0 alanaforester0
  • 15-12-2021
  • Mathematics
contestada

2x + 4y = 160
1x + 4y = 72

Respuesta :

minhoang0603
minhoang0603 minhoang0603
  • 15-12-2021

Answer:

x = 88; y = -4

Step-by-step explanation:

2(x+2y) = 160 --> x + 2y = 80

--> 1x + 4y - x - 2y = 72 - 80

--> 2y = -8 --> y = -4

--> x = 88

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