Answer
w=4
x=1
y=2
z=3
Work Step by Step
x+y=3
y+z=5
z+w=7
w=4
z+4=7, z=3
y+3=5, y=2
x+2=3, x=1
Finite Math and Applied Calculus (6th Edition)
by Waner, Stefan; Costenoble, Steven
Published by
Brooks Cole
ISBN 10:
1133607705
ISBN 13:
978-1-13360-770-0
Chapter 4 - Section 4.1 - Matrix Addition and Scalar Multiplication - Exercises - Page 239: 11
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