Algebra 1

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

Chapter 2 - Solving Equations - 2-9 Percents - Standardized Test Prep - Page 143: 56



Work Step by Step

$\frac{x}{2}+\frac{x}{3}-15=0$ convert the fractions to the least common denominator of 6; add 15 to both sides $\frac{3x}{6}+\frac{2x}{6}-15+15=0+15$ simplify $\frac{5x}{6}=15$ multiply both sides by 6 $\frac{5x}{6}\times6=15\times6$ simplify $5x=90$ divide both sides by 5 $5x\div5=90\div5$ simplify $x=18$
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