Answer
$x=2$
$y=-1$
(2, -1)
Work Step by Step
$2x -y = 5$
$5x -y = 11$
Subtract the first equation from the second one.
$5x-y-(2x-y)=11-5$
$5x-2x-y+y=6$
$3x=6$
$x=2$
Substitute x in the first equation to get y
$2*2 -y=5$
$-y=5-4$
$y=-1$
Elementary Linear Algebra 7th Edition
by Larson, Ron
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: 17
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.
