Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)

by Sullivan III, Michael

Published by Pearson

ISBN 10: 0-32193-104-1

ISBN 13: 978-0-32193-104-7

Chapter 10 - Systems of Equations and Inequalities - Chapter Test - Page 816: 1

Answer

$(3,-1)$

Work Step by Step

1. Multiply the 1st equation by 2 then add to the 2nd equation to get $5y=-5$, thus $y=-1$ 2. Use the 1st equation to get $2x=y+7=6$, thus $x=3$ and the solution $(3,-1)$

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.