AYUDAHELP AYUDAHELP
  • 15-11-2020
  • Mathematics
contestada

Calcula y:
14x - 5y = 60
8x - 2y = 36

Seleccione una:
A. 2
B. 6
C. 10
D. 5
E. 8

Respuesta :

meredith48034
meredith48034 meredith48034
  • 15-11-2020

Answer:

Step-by-step explanation:

-28x + 10y = -120

 40x + 10y = 180

12x = 60

x = 5: D is the answer

8(5) - 2y = 36

40 - 2y = 36

-2y = -4

y = 2: A is the other answer

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