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

Answer to Problem 22E
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 the second equation to the third equation
______________________.
Adding the second equation to the third equation produces a new third equation
Finally, we need a coefficient of 1 for z in the third equation
Multiplying the third equation by
From equation 3 we know the value of
Finally, substitute
and
The solution is
Chapter 7 Solutions
Precalculus with Limits: A Graphing Approach
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