natsusenpai05 natsusenpai05
  • 21-11-2019
  • Mathematics
contestada

2x - y - 4 = 0
3x + y - 9 = 0

Respuesta :

KurdishPotato
KurdishPotato KurdishPotato
  • 21-11-2019

Step-by-step explanation:

add up both equations

2x -y + 3x + y -13 = 0 (y will eliminate -y)

5x -13 = 0

5x = 13

x = 13/5 now use this value to find y

2 × 13/5 -y - 4 = 0

26/5 - y -4 = 0

26/5 - 4 = y

6/5 = y

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