SOLUTION: Using the Method of Elmination solve the system of linear equations. x - 2y + z = 8 2x - 6y - 11z = 4 3x - 6y + 10z = 6 I consistently keep finding myself to be stuck after

Algebra ->  Expressions-with-variables -> SOLUTION: Using the Method of Elmination solve the system of linear equations. x - 2y + z = 8 2x - 6y - 11z = 4 3x - 6y + 10z = 6 I consistently keep finding myself to be stuck after       Log On


   

Question 871214: Using the Method of Elmination solve the system of linear equations.
x - 2y + z = 8
2x - 6y - 11z = 4
3x - 6y + 10z = 6
I consistently keep finding myself to be stuck after i find the z variable ( which is 8/7) Need help!
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

I. x - 2y + z = 8

 2x - 6y - 11z = 4

 11x - 22y + 11z = 88   I. x11

 2x - 6y - 11z = 4  

   13x -28y = 92 ***

-10x + 20y -10z = -80   I. times(-10)

3x - 6y + 10z = 6

  -7x + 14y = -74

   13x -28y = 184   

   -14x + 28y = -148   x2

   13x -28y = 92 ***

         -x = -56

         x = 56,  y = 159/7  and z = -18/7