Solve the system using Gaussian elimination.               2x + 3y = 12             4x + y  = 14

Intermediate Algebra
19th Edition
ISBN:9780998625720
Author:Lynn Marecek
Publisher:Lynn Marecek
Chapter4: Systems Of Linear Equations
Section4.4: Solve Systems Of Equations With Three Variables
Problem 4.63TI: Solve the system by elimination: {3x+yz=22x3y2z=14xy3z=0 .
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Solve the system using Gaussian elimination.

 

            2x + 3y = 12

            4x + y  = 14 

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What exactly is meant by the operation r2 -----> r2/[-5]? How was the -5 chosen?

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