X1 + x, – 5x, = 3 – 2x, = 1 2x, - x2 - X3 = 0 - || X1 -

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter1: Fundamental Concepts Of Algebra
Section1.4: Fractional Expressions
Problem 66E
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Question
#34
1
0.
23. |0
1
1
01
24. 0
1
System of Linear Equations In Exercises 25-38,
solve the system using either Gaussian elimination with
back-substitution or Gauss-Jordan elimination.
25. x + 3y = 11
3x + y = 9
2x + 6y =
- 2x – 6y = – 16
26.
16
%3D
%3D
27. -x +2y = 1.5
2x-4y = 3
28. 2x- y = -0.1
%3D
Transcribed Image Text:1 0. 23. |0 1 1 01 24. 0 1 System of Linear Equations In Exercises 25-38, solve the system using either Gaussian elimination with back-substitution or Gauss-Jordan elimination. 25. x + 3y = 11 3x + y = 9 2x + 6y = - 2x – 6y = – 16 26. 16 %3D %3D 27. -x +2y = 1.5 2x-4y = 3 28. 2x- y = -0.1 %3D
20
22
33. 2х, +
3x3
3x2 + 7x3
8x, - 9x2 + 15x3 = 10
34. x, + x2 - 5x3 = 3
– 2x3 = 1
2x, - x, - X3 = 0
35. 4x + 12y – 7z – 20w = 22
3x + 9y – 5z – 28w = 30
3.
4x1
|
%3D
+ X2
X1
-
%3D
-
|
%3D
-
-
8.
x + 2y + z =
-21
36.
.3x – 6v
3z
%3D
-
-
Transcribed Image Text:20 22 33. 2х, + 3x3 3x2 + 7x3 8x, - 9x2 + 15x3 = 10 34. x, + x2 - 5x3 = 3 – 2x3 = 1 2x, - x, - X3 = 0 35. 4x + 12y – 7z – 20w = 22 3x + 9y – 5z – 28w = 30 3. 4x1 | %3D + X2 X1 - %3D - | %3D - - 8. x + 2y + z = -21 36. .3x – 6v 3z %3D - -
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