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 - Chapter Review - Page 409: 12



Work Step by Step

You have the equations:2x+2y=22 and y=2x-1. Solve: 2x+2(2x-1)=22 -plug in the second equation into the first and distribute- 2x+4x-2=22 -combine like terms- 6x-2=22 -add 2 to both sides- 6x=24 -divide both sides by 6- x=4 Plug in x=4 into one of the equations: 2(4)+2y=22 8+2y=22 2y=14 y=7 The solution is (4,7)
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.