Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 4 - Section 4.8 - Solving Equations Containing Fractions - Exercise Set: 70

Answer

15

Work Step by Step

$\frac{y}{5}$-2 =$\frac{y}{3}$ - 4 Multiply by LCD, 15 15$\frac{y}{5}$ - 2$\times$15 = 15$\frac{y}{3}$ -4 $\times$15 $\frac{3y\times5}{5}$ - 2$\times$15 = $\frac{5y\times3}{3}$ -4 $\times$15 3y-30=5y-60 3y-30 -5y=5y-60 -5y -2y-30 =-60 -2y-30 +30=-60 +30 -2y =-30 $\frac{-2y}{-2}$=$\frac{-30}{-2}$ y=15 The solution is 15 $\frac{y}{5}$-2 =$\frac{y}{3}$ -4 $\frac{15}{5}$-2 =$\frac{15}{3}$ -4 $\frac{5\times3}{5}$-2 =$\frac{5\times3}{3}$ -4 3-2=5-4 1=1
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