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9 January, 23:58

Jenny says the two expressions 7a - 4 + 3a - 6 and 4a - 10 are

equivalent? Is she correct?

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Answers (1)
  1. 10 January, 00:14
    0
    Yes, substitute a=2.

    14 - 4 + 6 - 6 = - 2

    8 - 10 = - 2
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