Algebra 1: Common Core (15th Edition)

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

Chapter 2 - Solving Equations - 2-3 Solving Multi-Step Equations - Practice and Problem-Solving Exercises - Page 99: 61

Answer

25

Work Step by Step

They are on the same side so they add up to 180. Thus; $5x+5+2x=180$ (simplify like terms) $7x+5=180$ (subtract both sides by 5) $7x=175$ (divide both sides by 7 to isolate the variable) $x=25$
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