To use: the matrices to solve the system of equations using Gaussian elimination with back substitution.
Answer to Problem 84RE
The solution of the given system of equations is x = 0.85 and y = 1.
Explanation of Solution
Given information :
Writing the above system of equation in the matrix form,
Writing the matrix in the augmented form,
Applying Gaussian elimination,
Now, from the last matrix,
Using back substitution,
So, y = 1,
The solution of the given system of equations is x = 0.85 and y = 1.
Chapter 7 Solutions
Precalculus with Limits: A Graphing Approach
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