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 310: 10


The solution is -$\frac{7}{8}$

Work Step by Step

$\frac{1}{2}$ + a= -$\frac{3}{8}$ $\frac{1}{2}$+a -$\frac{1}{2}$=- $\frac{3}{8}$-$\frac{1}{2}$ Subtract $\frac{1}{2}$ to both sides $a=-\frac{3}{8}$-$\frac{4}{8}$ LCD of the denominators 8 and 2 is 8 $a=-\frac{3}{8}$-$\frac{4}{8}$ $a=\frac{-3-4}{8}$ $a= -\frac{7}{8}$ The solution is -$\frac{7}{8}$ Check Replace y with $\frac{-7}{8}$ $\frac{1}{2}$ +a=-$\frac{3}{8}$ $\frac{1}{2}$ -$\frac{7}{10}$=-$\frac{3}{10}$ $\frac{1}{2}$ -$\frac{7}{8}$=-$\frac{3}{8}$ $\frac{4}{8}$-$\frac{7}{8}$=-$\frac{3}{8}$ $\frac{4-7}{8}$=-$\frac{3}{8}$ -$\frac{3}{8}$=-$\frac{3}{8}$
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