Answer
$x = 1$
Work Step by Step
$\frac{4}{5} + \frac{x}{4} = \frac{21}{20}$
$\frac{x}{4} = \frac{21}{20} - \frac{4}{5}$
$\frac{x}{4} = \frac{21-16}{20} $
$\frac{x}{4} = \frac{5}{20} $
$x = \frac{20}{20}$
$x = 1$
Prealgebra (7th Edition)
by Martin-Gay, Elayn
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: 46
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