nelly63
nelly63 nelly63
  • 08-05-2020
  • Mathematics
contestada

-3x + 4y = 12
3x – 6y = 18
Answer has to be (x,y)

Respuesta :

Mar92781 Mar92781
  • 08-05-2020

Answer:

(24, -15)

Step-by-step explanation:

-3x + 4y = 12

3x – 6y = 18

Add the two equations together to first solve for y

-2y=30

y=-15

Enter -15 into one of the equations to solve for x

-3x + 4(-15) = 12

-3x-60=12

-3x=72

x=24

Hope this helps! Please mark brainliest :)

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