Is this how you do number 5? Is my solution correct?

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
Section: Chapter Questions
Problem 1CC
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Is this how you do number 5? Is my solution correct?

3.
Solve the system of equations using augmented matrix methods.
x- 2x, =- 1
2.
%3D
L = x-x
-2
Rz =-2•R,+R
319] Rz='/3RZ
%3D
[:
-2!-17
「d+?て='
X,= 5
5,3)
X, こ3
2.
5. Solve the system of equations using augmented matrix methods.
3x - 5x , =-7
9x - 15x , =- 21
The system
Of eguations
3t
5
is consistent.
2
(S、Sく
The systemn
has infinitely
9-151-218 ーツ5R2
-/i5 Riz
%3D
6.
colutibng
+Ix = 7/5
X2= 3X +7/5
%3D
21:3
7.
15
Transcribed Image Text:3. Solve the system of equations using augmented matrix methods. x- 2x, =- 1 2. %3D L = x-x -2 Rz =-2•R,+R 319] Rz='/3RZ %3D [: -2!-17 「d+?て=' X,= 5 5,3) X, こ3 2. 5. Solve the system of equations using augmented matrix methods. 3x - 5x , =-7 9x - 15x , =- 21 The system Of eguations 3t 5 is consistent. 2 (S、Sく The systemn has infinitely 9-151-218 ーツ5R2 -/i5 Riz %3D 6. colutibng +Ix = 7/5 X2= 3X +7/5 %3D 21:3 7. 15
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