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: 9

Answer

Both methods will work.

Work Step by Step

Both methods are certainly valid and will help obtain the answer. Both steps are intended to cancel out the fractions, which will make the problem easier to solve. The difference is that Lisa uses the Cross Products Property while Jen uses the Multiplication Property of Equality.
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