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Q&A #7470

Teachers' Lounge Discussion: System of equations

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From: Volha Jay <coololga79@yahoo.com>
To: Teacher2Teacher Public Discussion
Date: 2007021320:14:35
Subject: Re: System of equations

Did you try multiplying the second one by -2 and the third one by -1;
and then adding up the first two and and the first and the third?

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