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9 November, 19:13

4. Simplify the expression. - 3 (b - 7)

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Answers (2)
  1. 9 November, 19:38
    0
    -3 (b-7)

    -3b+21=0

    -3b=-21 (minus will cancel minus)

    b=21/3

    b=7
  2. 9 November, 19:47
    0
    i believe the answer is - 3b+21
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