The positions of rational numbers a, B and C on the number axis are shown in the figure= -------c--------a------0---------b--------

From the meaning of the title:
a-b＜0
a-c＞0
b+c＜0
So:
simple form
=-（a-b）-（a-c）-（b+c）
=-a+b-a+c-b-c
=-2a

RELATED INFORMATIONS

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