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13 April, 04:58

Which is a simplified form of the expression 3a + 7 - a - 7?

A. 2a

B. 4a

C. 2a + 14

D. 4a - 14

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Answers (2)
  1. 13 April, 07:39
    0
    Choice A.

    Step-by-step explanation:

    3a + 7 - a - 7 = 3a+7 - a+7 = 3a-a = 2a
  2. 13 April, 07:50
    0
    A) 2a

    Step-by-step explanation:

    3a+7-a-7

    3a-a+7-7

    2a+7-7

    2a
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