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15 January, 21:51

At should be added to a+

3b+c to get 3a+5b+7c?

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Answers (1)
  1. 16 January, 00:49
    0
    2a + 2b + 6c.

    Step-by-step explanation:

    To find this we subtract : -

    3a + 5b + 7c - (a + 3b + c)

    = 3a + 5b + 7c - a - 3b - c Now combine like terms:

    2a + 2b + 6c (answer).
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