Answer
$0$
Work Step by Step
Using concepts of the absolute value of a number, the given expression, $
-|8-13|-|-4|+|-9|
,$ simplifies to
\begin{array}{l}\require{cancel}
-|-5|-|-4|+|-9|
\\\\=
-(5)-(4)+(9)
\\\\=
-5-4+9
\\\\=
0
.\end{array}