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Q&A #7470

Teachers' Lounge Discussion: System of equations

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From: Loyd <loydlin@aol.com>
To: Teacher2Teacher Public Discussion
Date: 2007021804:53:57
Subject: Re: System of equations

On 2007021316:10:25, Alex wrote:
>	
>could someone please help me solve this system of equations????
>
>
>
>x + y + 2z = 8
>
>3x + 4y + z = 24
>
>x - y + 2z = - 40 
>


Subtract the third equation from the first equation and you will
eliminate two varibles.  This will give you 2y = 48.

That will be a start.


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