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What is the value of x? (1) -(x + y) = x - y (2) x + y = 2

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What is the value of x? (1) -(x + y) = x - y (2) x + y = 2  [#permalink]

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New post 03 Oct 2018, 02:01
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Difficulty:

  5% (low)

Question Stats:

83% (00:37) correct 17% (01:07) wrong based on 106 sessions

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Re: What is the value of x? (1) -(x + y) = x - y (2) x + y = 2  [#permalink]

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New post 03 Oct 2018, 02:05
Bunuel wrote:
What is the value of x?

(1) -(x + y) = x - y
(2) x + y = 2



Question: x = ?

Statement 1: -(x + y) = x - y

i.e. -x -y = x-y
i.e. -x = x
i.e. 2x = 0
i.e. x = 0
SUFFICIENT

Statement 2: x + y = 2
if x = 0 then y = 2
if x = 1 then y = 1
Multiple values of x are possible hence
NOT SUFFICIENT

ANswer: Option A
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Re: What is the value of x? (1) -(x + y) = x - y (2) x + y = 2  [#permalink]

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New post 16 Sep 2019, 04:45
Bunuel wrote:
What is the value of x?

(1) -(x + y) = x - y
(2) x + y = 2


What is the value of x?

(1) -(x + y) = x - y
-x-y=x-y
-x = x
2x = 0
x =0
SUFFICIENT

(2) x + y = 2
Since y in unknown
NOT SUFFICIENT

IMO A
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Re: What is the value of x? (1) -(x + y) = x - y (2) x + y = 2   [#permalink] 16 Sep 2019, 04:45
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