Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 9 Quadratic Relations and Conic Sections - Prerequisite Skills - Page 612: 11



Work Step by Step

Adding twice the $2^{nd}$ equation to the first gives us,$ 2x-2x-4y-y =5$ $$-5y = 5$$ $$y = -1$$ Plugging that back in, $$-x-2*(-1) = -3$$ $$-x=-5$$ $$x=5$$
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.