Elementary Linear Algebra 7th Edition

Published by Cengage Learning
ISBN 10: 1-13311-087-8
ISBN 13: 978-1-13311-087-3

Chapter 1 - Systems of Linear Equations - 1.1 Introduction to Systems of Linear Equations - 1.1 Exercises - Page 10: 13

Answer

There are no solutions for this system.

Work Step by Step

$x - y = 1$ $-2x + 2y = 5$ Express x in terms of y from the first equation. $x = 1 + y$ Substitute x to solve for y in the second equation. $-2*(1+y)+2y=5$ $-2y +2y -2 = 5$ $-2 = 5$ This shows us that there are no solutions for this system.
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