SOLUTION: Solve each system x-3y+2z=-6 2x+5y-4z=6 3x-4y+12z=-5

Algebra ->  Test -> SOLUTION: Solve each system x-3y+2z=-6 2x+5y-4z=6 3x-4y+12z=-5      Log On


   

Question 673798: Solve each system
x-3y+2z=-6
2x+5y-4z=6
3x-4y+12z=-5
Found 2 solutions by ewatrrr, lynnlo:
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

x-3y+2z=-6

2x+5y-4z=6

4x-y+=+-6

2x+5y-4z=6

3x-4y+12z=-5

 9x%2B11y+=+13



4x  -y = -6

9x + 11y = 13

 53x = -53

   x = -1, y = 2  and z = 1/2  -1-6+%2B2z+=+-6

Answer by lynnlo(4176) About Me  (Show Source):
You can put this solution on YOUR website!
90x=-2z+3y-6
(2)x=-5y/2+2z+3
(3)x=-4z+4y/3-5