
To Find: The solution of the system of linear equation and check the solution algebraically

Answer to Problem 23E
The solution is
Explanation of Solution
Given information: The given system of three linear equations in three variables are
Concept used:Gaussian Elimination is the process of using valid row operations on a matrix until it is in reduced row echelon form
Calculation:
Adding
______________________.
Adding
Adding second equation to -2 times the third equation
______________________.
Adding second equation to
Finally, we need a coefficient of
Multiplying the third equation by
From equation
Finally, substitute
The solution is
Chapter 7 Solutions
Precalculus with Limits: A Graphing Approach
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