USE ELIMINATION TO SOLVE THE SYSTEM OF EQUATIONS

Question

{3X-2Y+X=9
X-Y+4Z=10
2X+3Y-Z=53

A)(-6,-13.2,0.7)
B)(14.1,-8.6,-3.2)
C)(5,0,4)
D)(10,12,3)

Answer 1

Solve x + y + z = 6; x - 2y+ 2z = 3; 3x - y - z = -2

Answer 2

Let X,Y,Z,W be 4 vectors such that, ax + by + cz + dw = 0 always gives a=b=c=d=0 then, x,y,z,w are .............. vectors