Algebra 1: Common Core (15th Edition)

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

Chapter 5 - Linear Functions - 5-6 Parallel and Perpendicular Lines - Practice and Problem-Solving Exercises - Page 335: 39



Work Step by Step

(5x-1)+(-2x+7)=9 -remove parentheses- 5x-1-2x+7=9 -simplify like terms- 3x+6=9 -subtract 6 from both sides- 3x=3 -divide both sides by 3- x=1
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