Use an inverse matrix to solve the given system of equations.

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter7: Matrices And Determinants
Section7.3: The Inverse Of A Square Matrix
Problem 5ECP
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Use an inverse matrix to solve the given system of equations.

 

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Step 1

Given matrix,

 

Algebra homework question answer, step 1, image 1

 

Step 2

Then we know, Algebra homework question answer, step 2, image 1

Algebra homework question answer, step 2, image 2

Now calculate  Algebra homework question answer, step 2, image 3

Algebra homework question answer, step 2, image 4

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