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What is the value of |y − 1| ?

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Joined: 06 Sep 2013
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What is the value of |y − 1| ?  [#permalink]

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New post 17 Sep 2013, 18:23
5
9
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

68% (00:50) correct 32% (00:52) wrong based on 304 sessions

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What is the value of |y − 1| ?

(1) (y − 7)(y + 5) = 0
(2) 2y + 10 = 0
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Re: What is the value of |y − 1| ?  [#permalink]

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New post 17 Sep 2013, 19:10
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Re: What is the value of |y − 1| ?  [#permalink]

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New post 20 May 2016, 13:38
jlgdr wrote:
What is the value of |y − 1| ?

(1) (y − 7)(y + 5) = 0
(2) 2y + 10 = 0


(1) (y − 7)(y + 5) = 0
y=7 or y= -5

Putting these values of y in |y − 1|, we get 6 as the answer. Hence sufficient

(2) 2y + 10 = 0
y+5=0
y=-5

We get the answer by putting y= -5. Hence, sufficient.

D is the answer
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Re: What is the value of |y − 1| ?  [#permalink]

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New post 22 May 2016, 09:27
Statement #2-- can solve a unique value for y --- suff
statement #1--y=7 or -5 in both cases, the expression =1 suff .. we can a unique value for both vals of y.
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Re: What is the value of |y − 1| ?  [#permalink]

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New post 10 Aug 2019, 23:18
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Re: What is the value of |y − 1| ?   [#permalink] 10 Aug 2019, 23:18
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