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5 August, 15:25

Im trying to figure out how to do this 3t-7=5t, then 6t = i want to know how they get the answer - 21

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Answers (2)
  1. 5 August, 17:47
    0
    3t-7=5t

    3t-5t=7

    -2t=7 |· (-1)

    2t=-7 |:2

    t=-3,5

    t=-3,5 |·6

    6t=-21
  2. 5 August, 19:18
    0
    3t-7=5t

    -7=2t |•3

    -21=6t
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