## Algebra 2 (1st Edition)

$(-5,1,0)$ $3x+4y-2z=-11$ $3(-5)+4(1)-2(0)=-11$ $-15+4-0=-11$ $-11=-11$ $2x+y-z=11$ $2(-5)+1(1)-1(0)=11$ $-10+1-0=11$ $-9\ne11$ Since $-9\ne11$ we don't even have to check the last equation.