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Does 7x = 14 + 2x?

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GMAT Date: 08-08-2011
Does 7x = 14 + 2x? [#permalink]

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New post 25 Mar 2011, 05:29
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Question Stats:

51% (00:56) correct 49% (01:22) wrong based on 76 sessions

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Does 7x = 14 + 2x?

(1) -3x is greater than or equal to -9.
(2) 2x is greater than or equal to 6.
[Reveal] Spoiler: OA

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Re: Does 7x = 14 + 2x? [#permalink]

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New post 25 Mar 2011, 05:39
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Yalephd wrote:
Please provide an eplanation for this question. I'm confused.


\(7x=14+2x\)

\(5x=14\)

\(x=2.8\)

Q: Is x=2.8?

1.
\(-3x\ge-9\)
\(-x\ge-3\)
\(x\le3\)

Means;
x is either 3 or less than 3.
x can be 3,2.9,2.8,0,-90
x may or may not be equal to 2.8
Not Sufficient.

2.
\(2x\ge6\)
\(x\ge3\)

Means;
x can never be equal to 2.8 because it is either equal to 3 or more than 3.
Sufficient.

Ans: "B"

P.S.: By the way, if I consider both statements and both statements must provide true information. x=3
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Kudos [?]: 2097 [1], given: 376

Manager
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Joined: 03 Aug 2010
Posts: 105

Kudos [?]: 101 [0], given: 63

GMAT Date: 08-08-2011
Re: Does 7x = 14 + 2x? [#permalink]

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New post 25 Mar 2011, 05:47
Is x=2.8?
Rewording the question like that makes it a very easy question.
Thanks a lot. +1

fluke wrote:
Yalephd wrote:
Please provide an eplanation for this question. I'm confused.


\(7x=14+2x\)

\(5x=14\)

\(x=2.8\)

Q: Is x=2.8?

1.
\(-3x\ge-9\)
\(-x\ge-3\)
\(x\le3\)

Means;
x is either 3 or less than 3.
x can be 3,2.9,2.8,0,-90
x may or may not be equal to 2.8
Not Sufficient.

2.
\(2x\ge6\)
\(x\ge3\)

Means;
x can never be equal to 2.8 because it is either equal to 3 or more than 3.
Sufficient.

Ans: "B"

P.S.: By the way, if I consider both statements and both statements must provide true information. x=3

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Re: Does 7x = 14 + 2x? [#permalink]

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New post 19 Oct 2017, 05:46
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Re: Does 7x = 14 + 2x?   [#permalink] 19 Oct 2017, 05:46
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