## College Algebra (6th Edition)

Plug in the given values to the variables to test if they are a solution to the system. $(-1,3,2)$ $x-2z=-5$ $-1-2(2)=-5$ $-1-4=-5$ $-5=-5$ $y-3z=-3$ $3-3(2)=-3$ $3-6=-3$ $-3=-3$ $2x-z=-4$ $2(-1)-2=-4$ $-2-2=-4$ $-4=-4$ yes