Answer
Fill the blanks with:
$x-y+z=5$
$y-z=-3$
$z+3$
$8$
$\{(8, z+3,z)\}$
Work Step by Step
Interpreting the matrix,
Equation 1:$ \qquad x-y+z=5$
Equation 2:$\qquad \quad y-z=-3$
Solving Eq.2, (add z to both sides)
$y=z+3$
Substituting this into Eq.1:
$x-(z+3)+z=5$
$x-3=5$
$x=8$
Solution set:$\quad\{(8, z+3,z)\}$
