Linear Algebra and Its Applications (5th Edition)

Published by Pearson
ISBN 10: 0-32198-238-X
ISBN 13: 978-0-32198-238-4

Chapter 1 - Linear Equations in Linear Algebra - 1.1 Exercises: 21

Answer

h=-12

Work Step by Step

Only one row operation, Replacement, needs to be performed to set up the relevant equation. By replacing the second row with the sum of its values and those of row one scaled by a factor of 4, we obtain $h+12=0$. Thus, $h=-12$.
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