Solve the given system by back x1 + x2 - x3 - x4 = 1 , x2 + x3 + x4 = 0 , x3 - x4 = 0 , x4 = 1

College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter6: Linear Systems
Section6.1: Systems Of Linear Equations
Problem 58E
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Solve the given system by back x1 + x2 - x3 - x4 = 1 , x2 + x3 + x4 = 0 , x3 - x4 = 0 , x4 = 1

Expert Solution
Step 1

Given a system of equation,

Algebra homework question answer, step 1, image 1

 

Step 2

To solve a given system,

Substitute the value x4=1 in the equation (3)

We get,

Algebra homework question answer, step 2, image 1

Subtracting 1 from both sides,

Algebra homework question answer, step 2, image 2

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