krb2
krb2 krb2
  • 10-02-2017
  • Mathematics
contestada

need to solve x and y

need to solve x and y class=

Respuesta :

afbc1028
afbc1028 afbc1028
  • 10-02-2017
3x-4y=18
3x-y= 18/4 = 9/2
x-y = 9/2 / 3/1
x-y= 3/2
x = (3/2) + y

x+3y = -7
x+y= -7/3
x= (-7/3) -y
Answer Link
Notoeis2 Notoeis2
  • 10-02-2017
2. x= 2
    y= -3

4. x= 8.5
    y= 4.7
Answer Link

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