This exercise refers to the following system. x  −  y  +  z  =  2 −x  +  2y  +  z  =  −3 2x  +  y  −  2z  =  3 To eliminate x from the third equation, we add _________ times the first equation to the third equation. The third equation becomes ___________.

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter5: Systems Of Equations And Inequalities
Section5.2: Systems Of Linear Equations In Several Variables
Problem 2E
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This exercise refers to the following system.

x  −  y  +  z  =  2
−x  +  2y  +  z  =  −3
2x  +  y  −  2z  =  3

To eliminate x from the third equation, we add _________ times the first equation to the third equation. The third equation becomes ___________.

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