13. XI - 3x3 = 8 2x1 + 2x2 + 9x3 = 7 X2 + 5x3 = -2

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter2: Working With Real Numbers
Section: Chapter Questions
Problem 30CLR
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Question
17. Verify that the solution you found to Exercise 13 is correct
by substituting the values you obtained back into the original
equations.
Transcribed Image Text:17. Verify that the solution you found to Exercise 13 is correct by substituting the values you obtained back into the original equations.
13. XI
- 3x3 = 8
2x1 + 2x2 + 9x3 =
7
X2 + 5x3 = -2
Transcribed Image Text:13. XI - 3x3 = 8 2x1 + 2x2 + 9x3 = 7 X2 + 5x3 = -2
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