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27 November, 17:48

2d+4=10+5d

d=

what does it equal?

+4
Answers (1)
  1. 27 November, 18:09
    0
    d = - 2

    Step-by-step explanation:

    2d + 4 = 10 + 5d

    2d - 2d + 4 = 10 + 5d - 2d

    4 = 10 + 3d

    4 - 10 = 10 - 10 + 3d

    -6 = 3d

    (1/3) - 6 = 3d (1/3)

    -2 = d
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