Question

Triple Variable System Help?
4x-y+z=0
-2x+2y+3z=3
-x+3y-2z=-19

Answer 1

I would use elimination by multiplying eqn two by 2, and eqn 2 by 4, then make your x's cancel

Answer 2

so -4x-4y+3z=-3 after multiplying equation 2 by 2?

Answer 3

i mean -4x-4y+6z=-6

Answer 4

2*(-2x+2y+3z=3)
-4x+4y+6z = 6

Answer 5

Wow I wrote the problem down wrong in so many ways :p oh well.
Alright, so now -4x+4y+6z = 6 into -x+3y-2z=-19 and get rid of the x, yeah?

Answer 6

No, you have to multiply the 3rd eqn by 4

Answer 7

I came up with 4x+12y-12z=-114