Respuesta :

mhanifa

Answer:

x = 5, y = -2

Step-by-step explanation:

Given equations:

  • x + 2y = 1
  • 3x - y = 17​

From the first equation we get:

  • x = 1 -2y

Substitute x in the second equation, find y:

  • 3x - y = 17
  • 3*(1-2y) - y = 17
  • 3 - 6y - y = 17
  • -7y = 17 - 3
  • -7y = 14
  • y = -14/7
  • y = -2

Find x:

  • x = 1 - 2y
  • x = 1 - 2*(-2)
  • x = 1 + 4
  • x = 5

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