# Lesson 12 Solving Systems with Matrices Practice Understanding

### 1.

Set up a matrix that goes with the situation described.

A theater wants to take in

Assume that the matrices given represent linear systems of equations. Practice the strategy you used for row reduction of a given matrix so that the left portion of the matrix (the 2 rows and first 2 columns of entries) has

### 2.

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### 5.

Solve each system of equations using a method of your choice.