gamerxgirl90 gamerxgirl90
  • 07-02-2022
  • Mathematics
contestada

solve both by elimination can someone help?
2x-5y=-9 , 4x+5y=12

3x-2y=12 , 7x-5y=17

Respuesta :

zsm2800 zsm2800
  • 09-02-2022

Answer:

x=1/2, y=2;    

Step-by-step explanation:

First pair:

2x-5y =-9

4x+5y=12

Add them together:

6x=3

x = 1/2

2(1/2) - 5y =-9

1-5y = -9

1+9=5y

y=10/5=2

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