(5x-2y+z=24)*3= 15x-6y+3z= 72
resto con: x-4y+3z=26
> 14x-2y= 46...(1)
luego
(2x+5y-2z=-14)*3= 6x+15y-6y=-42
sumo con:(x-4y+3z=26)*2= 2x-8y+6z =52
>8x+7y= 10...(2)
de(1)y(2):
( 14x-2y= 46)*7:98y-14y=322
(8x+7y= 10)*2: 16x+14y= 20
> 124x= 332
x= 83/31
resolviendo en los otros datos
y= 354/217 , z=2485/217
