Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 4 - Review: 15

Answer

(3,-2)

Work Step by Step

x + 3y = -3 2x + y = 4 x + 3y = -3 y = 4-2x (subtracted 2x from both sides) x+3(4-2x)=-3 (subsituted y = 4-2x, into x + 3y = -3 ) x+12-6x=-3 -5x=-15 (subtracted 12 from both sides) x=3 (divided both sides by -5) 2(3) + y = 4 6+y=4 y=-2 (subtracted 6 from both sides leaving -2) (3,-2) Check if it is correct by plugging it into x + 3y = -3 3 +3(-2)=-3 3-6=-3 -3=-3
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After 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.