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2 November, 08:37

What's the answer to - 7=7d-8

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Answers (2)
  1. 2 November, 10:26
    0
    Isolate the "d"

    7d=1

    d = 1/7

    1/7 is your answer
  2. 2 November, 11:28
    0
    These are the steps to find for the value of d:

    -7 = 7d - 8

    -7 + 8 = 7d - 8 + 8 (add 8 on both sides)

    1 = 7d (combined liked terms)

    1 : 7 = d (inverse operation)

    0.14 = d or d = 0.14 (rounded to the nearest hundredths)

    To check your answer just substitute the value of d in the equation;

    -7 = 7d - 8

    -7 = 7 (0.14) - 8

    -7 = 1 - 8

    -7 = - 7
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