College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter 5 - Systems of Equations and Inequalities - Exercise Set 5.1 - Page 527: 28



Work Step by Step

$(2x+3y=-16)$ $+$ $(5x-10y=30)$ $(10x+15y=-80)$ $-$ $(10x-20y=60)$ $35y=-140$ $y=-4$ $2x+3(-4)=-16$ $2x-12=-16$ $2x=-4$ $x=-2$ $(-2,-4)$
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.