Algebra 1

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

Chapter 2 - Solving Equations - 2-7 Solving Proportions - Lesson Check - Page 127: 2



Work Step by Step

$\frac{5}{9}=\frac{15}{x}$ use cross multiplication $5x=15\times9$ divide both sides by 5 $5x\div5=135\div5$ $x=27$
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