## Algebra and Trigonometry 10th Edition

Published by Cengage Learning

# Chapter 10 - 10.1 - Matrices and Systems of Equations - 10.1 Exercises - Page 709: 21

#### Answer

$$x+y=3 \\ 5x-3y=-1$$

#### Work Step by Step

In order to write a matrix that would solve a linear equation, we would write the coefficients of each variable in their own column. Thus, we reverse the process to find: $$x+y=3 \\ 5x-3y=-1$$

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