Geometry: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281159
ISBN 13: 978-0-13328-115-6

Chapter 3 - Parallel and Perpendicular Lines - Get Ready! - Page 137: 9

Answer

x=15

Work Step by Step

$(2x+5)+(3x-10)=70\longrightarrow$ solve for x $5x-5=70\longrightarrow$ combine like terms $5x=75\longrightarrow$ addition property of equality $x=15\longrightarrow$ division property of equality
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