3x+3y+6z=9
2x+y+3z=7
x+2y-z=-10
any one know the answer

Question

02-09-2015
Mathematics

contestada

3x+3y+6z=9
2x+y+3z=7
x+2y-z=-10
any one know the answer

Respuesta :

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Panoyin Panoyin · Answer 1 · 2015-09-03T01:44:11+02:00

3x + 3y + 6z = 9
2x + 1y + 3z = 7 ⇒ 6x + 6y + 8z = 6
1x + 2y - 1z = -10        6x + 6y + 8z = 6
          4z = 12
3x + 3y + 6z = 9    4 4
2x + 1y + 3z = 7 ⇒ 0x + 0y + 4z = 12 z = 3
1x + 2y - 1z = -10            2x + y = -2
      2x + (-4) = -2
      2x - 4 = -2
      + 4 + 4
         2x = 2
      2    2
       x = 1
   (x, y, z) = (1, -4, 3)

3x+3y+6z=9 2x+y+3z=7 x+2y-z=-10 any one know the answer

Respuesta :

Otras preguntas

3x+3y+6z=9
2x+y+3z=7
x+2y-z=-10
any one know the answer