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17 November, 16:16

A math class is having a discussion on how to determine if the expressions 4 x minus x + 5 and 8 minus 3 x minus 3 are equivalent using substitution. The class has suggested four different methods.

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Answers (2)
  1. 17 November, 16:23
    0
    They are NOT equivalent

    Step-by-step explanation:

    4x-x+5 and 8-3x-3

    simplify

    3x+5 and 5x-3
  2. 17 November, 16:43
    0
    4x-x+5 = 8x-3x-3

    4x - x = 3x

    8x - 3x = 5x

    5 = 2x-3

    +3

    8 = 2x

    x=4
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