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OpenStudy (anonymous):
Choose the value of the x determinant (Dx) in the following system. 3x – 4y = –7 x + y = 7 21 28 –14 –35
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OpenStudy (anonymous):
I think I have to use Cramer's Rule but I'm not quite sure how to
OpenStudy (anonymous):
This is for an upcoming test and I really need help solving this question.
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