emilykanderson
emilykanderson emilykanderson
  • 02-07-2016
  • Mathematics
contestada

px + qy = r
2px - qy = 2r
When solving this system of equations, x =

Respuesta :

texaschic101
texaschic101 texaschic101
  • 02-07-2016
px + qy = r
2px - qy = 2r
----------------add
3px = 3r

x = 3r/3p
x = r/p
Answer Link
rudyrocks120 rudyrocks120
  • 04-07-2016
You just add the equations:
  px + qy = r
2px  - qy = 2r
3px = 3r
divide by 3
px = r
divide by p
x = (r)/(p)
Answer Link

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