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# What is the value of x?

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Senior Manager
Joined: 21 Oct 2013
Posts: 419
What is the value of x?  [#permalink]

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27 Aug 2014, 03:47
1
1
00:00

Difficulty:

15% (low)

Question Stats:

72% (00:56) correct 28% (00:52) wrong based on 153 sessions

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What is the value of x?

(1) |x + 1| = 1
(2) |x − 1| = 1
Math Expert
Joined: 02 Sep 2009
Posts: 52431
Re: What is the value of x?  [#permalink]

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27 Aug 2014, 03:55
2
What is the value of x?

(1) |x + 1| = 1 --> x + 1 = 1 --> x = 0 OR -(x + 1) = 1 --> x = -2. Not sufficient.

(2) |x − 1| = 1 --> x - 1 = 1 --> x = 2 OR -(x - 1) = 1 --> x = 0. Not sufficient.

(1)+(2) Intersection of the values from (1) and (2) is x = 0. Sufficient.

Hope it's clear.
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Senior DS Moderator
Joined: 27 Oct 2017
Posts: 1199
Location: India
GPA: 3.64
WE: Business Development (Energy and Utilities)
Re: What is the value of x?  [#permalink]

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18 Sep 2018, 08:42
(1) |x + 1| = 1
It means the x is at a distance of 1 from -1 , hence x can be 0, -2
NOT SUFFICIENT
(2) |x − 1| = 1
It means that x is at a distance of 1 from 1, hence x can be 2, 0
NOT SUFFICIENT

Combining Statement 1 & 2 , x = 0
SUFFICIENT

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Re: What is the value of x? &nbs [#permalink] 18 Sep 2018, 08:42
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