Differential Equations and Linear Algebra (4th Edition)

Published by Pearson
ISBN 10: 0-32196-467-5
ISBN 13: 978-0-32196-467-0

Chapter 2 - Matrices and Systems of Linear Equations - 2.3 Terminology for Systems of Linear Equations - Problems - Page 144: 2

Answer

See below.

Work Step by Step

Plugging in the values into the equations: $2+(-3)-2(1)=2-3-2=-3$ $3(2)-(-3)-7(1)=6+9-7=2$ $2+(-3)+1=2-3+1=0$ $2(2)+2(-3)-4(1)=4-6-4=-6$ All of the equations are satisfied, thus it is in fact a good solution.
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