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A very simple problem

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Reply Wed 18 Feb, 2004 07:37 am
Can anyone show me how to solve this problem:

6x - 7 = 2/x + 4

Thanks :wink: .
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Type: Discussion • Score: 1 • Views: 991 • Replies: 10
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SealPoet
 
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Reply Wed 18 Feb, 2004 08:50 am
Put all the x's on one side and all the digits on the other.
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Wilso
 
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Reply Wed 18 Feb, 2004 08:52 am
Is it 2/x + 4 or 2/(x+4)?
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Back to the future
 
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Reply Wed 18 Feb, 2004 09:47 am
SealPoet wrote:
Put all the x's on one side and all the digits on the other.


I understand, but I can´t do it:

6x - 7 = 2/x + 4
6x=2/x + 11
6x-2/x = 11

I don´t know how join this 6x with -2/x, the nearest thing to the result that I could work out was:

6x - 2x^-1 <--- But neither I can join it.

P.S.: Sorry for my grammar mistakes.
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Back to the future
 
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Reply Wed 18 Feb, 2004 09:48 am
Wilso wrote:
Is it 2/x + 4 or 2/(x+4)?


2/x + 4
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SealPoet
 
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Reply Wed 18 Feb, 2004 10:15 am
pssst.... multiply both sides by x.

Last hint.
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fresco
 
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Reply Wed 18 Feb, 2004 12:29 pm
Sealpoet is a correct. This is a quadratic equation.

Got the solution yet ?
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SealPoet
 
  1  
Reply Wed 18 Feb, 2004 02:48 pm
Sshhhh fresco... don't give too much away, the teacher may be watching us pass notes.
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Back to the future
 
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Reply Wed 18 Feb, 2004 04:05 pm
No...Sad

6x^2 -7x = 2x/x + 4x

6x^2 - 11x = 2

and then ... ¿?
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Wilso
 
  1  
Reply Wed 18 Feb, 2004 05:00 pm
6x^2-11x-2=0

Looking familiar at all?
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Back to the future
 
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Reply Wed 18 Feb, 2004 06:35 pm
I got it, thanks to everyone.
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