Algebra: A Combined Approach (4th Edition)

by Martin-Gay, Elayn

Published by Pearson

ISBN 10: 0321726391

ISBN 13: 978-0-32172-639-1

Chapter 9 - Section 9.1 - Solving Systems of Linear Equations in Three Variables and Problem Solving - Exercise Set - Page 637: 10

Answer

No solution

Work Step by Step

A: $5y-7z=14$ B: $2x+y+4z=10$ C: $2x+6y-3z=30$ A+B $2x+y+4z+(5y-7z)=10+14$ $2x+6y-3z=24$ We have no solution as $2x+6y-3z$ is listed as having two different solutions--24 and 30.

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