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 - Page 311: 26


The solution is $\frac{3}{25}$

Work Step by Step

-4z = -$\frac{12}{25}$ Multiply both sides by -$\frac{1}{4}$ -4$\times$$\frac{1}{4}$z = -$\frac{12}{25}$ $\times$ -$\frac{1}{4}$ z= $\frac{12\times1}{25\times4}$ z= $\frac{12}{100}$ z= $\frac{4\times3}{4\times25}$ z= $\frac{3}{25}$ The solution is $\frac{3}{25}$ Check Replace z with $\frac{3}{25}$ -4z=-$\frac{12}{25}$ -4$\times$$\frac{3}{25}$=-4z=-$\frac{12}{25}$ -$\frac{4\times3}{25}$=-$\frac{12}{25}$ -$\frac{12}{25}$ =-$\frac{12}{25}$
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