Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 6 - Systems of Equations and Inequalities - Mid-Chapter Quiz - Page 393: 10

Answer

Solutions: (3.5, 10)

Work Step by Step

Our two equations are: 1. 4x+2y=34 2. 10x-4y=-5 First lest multiply the first equation by a scalar of 2. We get: 1. 8x+4y=68 2. 10x-4y=-5 Now lets add the two equations. That gives us: 18x=63 (Divide both sides by 18) x=3.5 Now lets substitute this value of x into the first equation to get the value of y. 4(3.5)+2y=34 (Simplify) 14+2y=34 (Subtract 14 from both sides) 2y=20 (Divide both sides by 2) y=10 So our solution is (3.5, 10)
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.