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17 October, 23:04

What is the solution for - 2 = - (n-8) ?

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Answers (2)
  1. 18 October, 02:00
    0
    Remark

    The trick here is to remove the brackets carefully. Once you have done that the problem is almost solved.

    - 2 = - (n - 8) Multiply both terms inside the brackets by - 1

    -1 * n = - n

    -1 * - 8 = + 8 Be very careful with that. Make sure you understand that two minus's make a plus.

    - 2 = - n + 8 Add n to both sides.

    -2 + n = - n + n + 8

    -2 + n = 8 Add 2 to both sides.

    -2 + 2 + n = 8 + 2

    n = 10

    You should check this.

    -2 = - (10 - 8)

    -2 = - (2)

    - 2 = - 2 and it checks.
  2. 18 October, 02:30
    0
    N=10 (If your looking for the variable)
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