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Mathematics, 20.09.2019 11:20 YaGirlNeedaLearn

In the system -12c+3d=6 and -3c+6d=-9, which expression could you use for substitution? . a. d=-1/2c-3/2. b. c=-2d+3. c. c=1/4d-1/2. d. d=4c-2

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