Select Answer 2. 12x + 15y + 3z 20x + +25y + 5z 28 x + 35y + 7z -9 -15 -21

Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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2.
12x
20x
28x
+ 15 y + 3z
-9
+25y + 5z = -15
+35y + 7z
-21
11
Transcribed Image Text:Select Answer 2. 12x 20x 28x + 15 y + 3z -9 +25y + 5z = -15 +35y + 7z -21 11
Expert Solution
Step 1: Define the problem.

To solve the following system of equations.

table row cell 12 straight x plus 15 straight y plus 3 straight z end cell equals cell negative 9 end cell row cell 20 straight x plus 25 straight y plus 5 straight z end cell equals cell negative 15 end cell row cell 28 straight x plus 35 straight y plus 7 straight z end cell equals cell negative 21 end cell end table

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