Practice Exercises

In Exercises $1-24,$ use Gaussian elimination to find the complete solution to each system of equations, or show that none exists.

$5x+12y+z=10$

$2x+5y+2z=-1$

$x+2y-3z=5$

$2x-4y+z=3$

$x-3y+z=5$

$3x-7y+2z=12$

$5x+8y-6z=14$

$3x+4y-2z=8$

$x+2y-2z=3$

$5x-11y+6z=12$

$-x+3y-2z=-4$

$3x-5y+2z=4$