sa777 sa777
  • 01-10-2020
  • Mathematics
contestada

Can someone please solve this, I will really appreciate it, thanks

Can someone please solve this I will really appreciate it thanks class=

Respuesta :

mhanifa
mhanifa mhanifa
  • 01-10-2020

Answer:

  • (-3, 9)

Step-by-step explanation:

  • - 9x - 5y = -18
  • 4x + 5y = 33

Add up the two equations:

  • -9x - 5y + 4x + 5y = -18 + 33
  • -5x = 15
  • x = -3

Finding y:

  • -9*(-3) - 5y = -18
  • 27 - 5y = -18
  • 5y = 27+18
  • 5y = 45
  • y = 9

Answer is: (-3, 9)

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