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7 March, 09:41

3+9n=21

A:-2

B:3

C:2

D:6

+2
Answers (2)
  1. 7 March, 10:11
    0
    C) its 2

    Step-by-step explanation:

    If you minus the 3 from both sides its 9n = 18 and you have to divideboth sides by 9 it would give you 2!
  2. 7 March, 13:12
    0
    C: 2

    Step-By-Step Explanation:

    Add a negative 3 to both sides and get: 9n = 18

    Divide 18 by 9 and get: 2
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