Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 3 - Solving Inequalities - Get Ready - Page 161: 26

Answer

$a=3$

Work Step by Step

$2a+5=9a-16\longrightarrow$ subtract 2a from each side; add 16 to each side $2a+5-2a+16=9a-16-2a+16\longrightarrow$ combine like terms $21=7a\longrightarrow$ divide each side by 7 $21\div7=7a\div7\longrightarrow$ simplify $3=a$
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