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3 May, 20:50

Solve the system. - a+4b+2c=-8 3a+b-4c=9 b=-1

A. (0,1,1)

B. (-1,-1,2)

C. (1,1,-2)

D. (2,-1,-1)

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Answers (2)
  1. 3 May, 21:05
    0
    The awnser is D
  2. 3 May, 21:12
    0
    -a+4b+2c=8

    -2+4b+2c=8

    3a+b-4c=9 b=-1

    3a-1-4c=9
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