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13 December, 14:40

The set of possible values of n is {-2, 1; 4).

What is the set of possible values of m if

3m = n-7?

How do I solve it

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Answers (1)
  1. 13 December, 14:44
    0
    Replace n in the equation with each given value and solve for m.

    You are given n = {-2, 1, 4}

    When n = - 2:

    3m = - 2-7

    3m = - 9

    m = - 9/3

    m = - 3

    When n = 1:

    3m = 1-7

    3m = - 6

    m = - 6 / 3

    m=-2

    When n = 4:

    3m = 4-7

    3m = - 3

    m = - 3/3

    m = - 1

    m = {-3, - 2, - 1}
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