Respuesta :

swagadamas

Answer: n=4 y=3

Step-by-step explanation:

3n - y = 9

2n + y = 11

n=4

3(4) - y = 9

12 - y = 9

y=3
  • 3x-y=9-(1)
  • 2x+y=11--(2)

Adding both

  • 5x=20
  • x=4

And

Put in eq(1)

  • 3(4)-y=9
  • 12-y=9
  • y=3