masooma68 masooma68
  • 12-08-2020
  • Mathematics
contestada

y= 3x - 15
x+y=13
find the solution

Respuesta :

ramylan00
ramylan00 ramylan00
  • 12-08-2020

Answer:

x+3x-15=13

4x=28

x=7

......

Answer Link
marnie16
marnie16 marnie16
  • 12-08-2020

Answer:

[tex]y = 3x - 15 \\ \\ to \: find \: x \: substitute \: y \: into \: 0\\ \\ 0 = 3x - 15 \\ - 3x = - 15 \\ divide \: both \: sides \:by \: - 3 \\ \\ x = 5[/tex]

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