Answer
$1$
Work Step by Step
$\dfrac{x+7}{7+x}$
Rewrite the denominator of the expression by putting the $x$ first and simplify:
$\dfrac{x+7}{7+x}=\dfrac{x+7}{x+7}=1$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 7 - Section 7.1 - Simplifying Rational Expressions - Exercise Set - Page 490: 23
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