Use Cramer S Rule to Solve the System of Equations $\left\{ \begin{array} { l } x + y + 2 z = 12 \\x + 2 y + z = 11 \\2 x + y + z = 9\end{array} \right.$

question 13

Essay

Use Cramer s rule to solve the system of equations, if possible. If the equations of the system are dependent, or if the system is inconsistent, so indicate. $\left\{ \begin{array} { l } x + y + 2 z = 12 \\x + 2 y + z = 11 \\2 x + y + z = 9\end{array} \right.$

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Objective Rating Systems

Systems or methods used to evaluate or assess performance quantitatively, based on impartial and measurable criteria.

Evaluation

The systematic assessment of processes, systems, or organizations to measure performance, effectiveness, or value.

Rating Systems

Mechanisms or scales used to evaluate or grade a certain attribute or performance of entities, products, or services.

Supply Management

The strategic approach to planning, procuring, and managing a company's supplies and vendors to optimize efficiency and minimize costs.