#### Answer

$59$

#### Work Step by Step

$L=50
\\X=10
\\I=1$
Note that when a smaller number is written before a bigger number, the smaller number is subtracted to the bigger number.
Thus,
$LIX = 50+(10-1) = 50+9=59$

Published by
Pearson

ISBN 10:
0321867327

ISBN 13:
978-0-32186-732-2

$59$

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