Answer
X=7 Y=3
Work Step by Step
Plug the three into the first equation as y because y = 3. Multiple 2 times 3 for 6 then add 6 to the negative 6 and the 1. To end with x=7. See the photo for more detailed work
Linear Algebra: A Modern Introduction
by Poole, David
Published by
Cengage Learning
ISBN 10:
1285463242
ISBN 13:
978-1-28546-324-7
Chapter 2 - Systems of Linear Equations - 2.1 Introduction to Systems of Linear Equations - Exercises 2.1 - Page 63: 19
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