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19 July, 18:55

Solve for a : C + 3a = 7

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Answers (2)
  1. 19 July, 19:04
    0
    C + 3a = 7

    C-C+3a = 7-C

    3a = 7-C

    3a/3 = (7-C) / 3

    a = (7-C) / 3
  2. 19 July, 19:08
    0
    A = 7 - C

    3 C+3a=7

    -C - C

    3a = 7-C

    3 3

    A = 7 - C

    3
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