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Table of contents
1. Fundamental Concepts of Algebra
2. Equations and Inequalities
3. Functions and Graphs
4. Polynomial and Rational Functions
5. Exponential and Logarithmic Functions
6. Systems of Equations and Inequalities
selected
7. Matrices and Determinants
8. Conic Sections
9. Sequences, Induction, and Probability
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College Algebra
7. Matrices and Determinants
Matrix Solutions to Linear Systems
Write the Augmented Matrix for a Linear System
10:47 minutes
Problem 3
Textbook Question
In Exercises 3–5, solve each system of equations using matrices. Use Gaussian elimination with back-substitution or Gauss-Jordan elimination.
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