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If a < 0, is |a| - a - |2a| = ?

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Concentration: Finance, Entrepreneurship
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If a < 0, is |a| - a - |2a| = ? [#permalink]

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New post 16 Aug 2017, 11:46
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If a < 0, is |a| - a - |2a| = ?

A. a
B. -1
C. 0
D. 1
E. –a
[Reveal] Spoiler: OA

Kudos [?]: 34 [1], given: 156

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P
Joined: 02 Aug 2009
Posts: 4909

Kudos [?]: 5222 [0], given: 112

Re: If a < 0, is |a| - a - |2a| = ? [#permalink]

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New post 16 Aug 2017, 12:08
Bounce1987 wrote:
If a<0, is |a|-a-|2a|=?

A.a B. -1 C.0 D.1 E. –a



Hi..
Let a=-x, where x is positive..
So |-x|-(-x)-|2*-x|=|x|+x-|-2x|=x+x-2x=0

Or take a as any value say -1...
So |a|-a-|2a|=|-1|-(-1)-|2*-1|=1+1-2=0

C
_________________

Absolute modulus :http://gmatclub.com/forum/absolute-modulus-a-better-understanding-210849.html#p1622372
Combination of similar and dissimilar things : http://gmatclub.com/forum/topic215915.html

Kudos [?]: 5222 [0], given: 112

Re: If a < 0, is |a| - a - |2a| = ?   [#permalink] 16 Aug 2017, 12:08
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If a < 0, is |a| - a - |2a| = ?

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