Answer
$2$
Work Step by Step
Since, we have $\dfrac{7x+4}{b}+13=x$
Multiply the bot sides by $b$
Thus,$7x+4+13b=xb$
or, $7x+4=b(x-13)$
Plug $x=-6$
Therefore, $7(-6)+4=b(-6-13)$
or, $-38=-19b$
Hence, $b=2$
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 1 - Section 1.4 - Solving Linear Equations - Exercise Set - Page 53: 101
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