Solve 2r+ 6y + z = 7 x+2y- 7= -1 5.x +7y- 47 = 9
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
Chapter4: Polynomials
Section4.2: Adding And Subtracting Polynomials
Problem 15WE
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Transcribed Image Text:QUESTION 1
Solve
2x + 6y + z = 7
x+2y- = -1
5x + 7y 42 = 9
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