Solving Systems with Cramer's Rule · Review Exercise 120

Write the system of linear equations from the augmented matrix. Indicate whether there will be a unique solution.

$\left[\begin{array}{ccc}1& 0& 5\\ 0& 1& -2\\ 0& 0& 0|-9\\ 4& & \\ 3& & \end{array}\right]$

Its source prints no answer for this problem, so there's nothing to check against.

OpenStax, Algebra and Trigonometry 2e · §11.8 Solving Systems with Cramer's Rule · Review Exercise 120