Find X : GMAT Problem Solving (PS)
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# Find X

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Manager
Joined: 17 Nov 2009
Posts: 239
Followers: 1

Kudos [?]: 45 [0], given: 17

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10 May 2010, 13:32
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Question Stats:

100% (02:50) correct 0% (00:00) wrong based on 0 sessions

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Please show me the steps to find x

3x+x\sqrt{3} =3+3\sqrt{3}

The answer is x=\sqrt{3} but I need to see the manipulation to get the answer..

Thanks
CEO
Status: Nothing comes easy: neither do I want.
Joined: 12 Oct 2009
Posts: 2795
Location: Malaysia
Concentration: Technology, Entrepreneurship
Schools: ISB '15 (M)
GMAT 1: 670 Q49 V31
GMAT 2: 710 Q50 V35
Followers: 229

Kudos [?]: 1646 [0], given: 235

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10 May 2010, 13:52
8
agnok wrote:
Please show me the steps to find x

3x+x\sqrt{3} =3+3\sqrt{3}

The answer is x=\sqrt{3} but I need to see the manipulation to get the answer..

Thanks

$$3x + x\sqrt{3} = 3+ 3\sqrt{3}$$

$$x(3 + \sqrt{3}) = 3(1 + \sqrt{3})$$

$$x = 3*(1 + \sqrt{3})/(3 + \sqrt{3})$$

$$x = 3(1 + \sqrt{3})/\sqrt{3}(1 + \sqrt{3})$$

hence x = $$\sqrt{3}$$
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Manager
Joined: 09 Apr 2010
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14 May 2010, 01:10
i think x\sqrt{3} should not be written like this ..it creates confusion because someone might think "\" is division ...
Re: Find X   [#permalink] 14 May 2010, 01:10
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