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OpenStudy (anonymous):
In the system –12c + 3d = 6 and –3c + 6d = –9, which expression could you use for substitution? A. d = –2003-11-02-00-00_files/i0320000.jpgc – 2003-11-02-00-00_files/i0320001.jpg B. c = –2d + 3 C. c = 2003-11-02-00-00_files/i0320002.jpgd – 2003-11-02-00-00_files/i0320003.jpg D. d = 4c – 2
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