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28 August, 01:00

11c - 2d = - 2

c + 8d = 8

using the substitution method

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Answers (1)
  1. 28 August, 01:13
    0
    A) 11c - 2d = - 2

    B) c + 8d = 8

    B) c = 8 - 8d then substitute this into A)

    A) 88 - 88d - 2d = - 2

    A) 90 = 90d

    d = 1

    c = 0
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