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OpenStudy (anonymous):
Please help: Which of the following methods does not work for the system 3x+4y=13 & 2x+y=7. Sub 7-2x in for 1st equation, solve both equations for y & find intersections, or do both methods work?
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Directrix (directrix):
>>Sub 7-2x in for 1st equation, s Sub 7 - 2x in for what in the lst equation? I think something was left out of the original question.
OpenStudy (anonymous):
I don't have the actual homework with me, I quickly jotted it down but I'm guessing you sub it in for y.
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