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February 28th, 2012, 08:38 PM   #1
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equations of unknown help please.

I got the answer for these 2 questions, but I need to verify them, the questions are

2x-3(1-4x)=2(1+7x)-5

and

x/2+1=x/3+2

Thank you for the help much appreciated. You don't have to show the work.
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February 28th, 2012, 08:43 PM   #2
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Re: eqautions of unknown help please.

The first is an identity (true for all real values of x) and the second is true for x = 6.
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February 28th, 2012, 08:48 PM   #3
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Re: eqautions of unknown help please.

Thank you Mark the first question I got right, but the second I think I messed up can you show me what you did for it?
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February 28th, 2012, 08:52 PM   #4
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Re: eqautions of unknown help please.

Sure:



Subtract 1 from both sides:



Cross-multiply:



Subtract 2x from both sides:

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February 28th, 2012, 09:43 PM   #5
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Re: equations of unknown help please.

Thank buddy. Your a great help =)
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