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Number Systems
easy
0:00.0
What is the absolute value of
∣
−
15
∣
−
∣
6
∣
|{-15}| - |{6}|
∣
−
15
∣
−
∣
6
∣
?
A
−
9
-9
−
9
B
21
21
21
C
9
9
9
D
−
21
-21
−
21
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