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9 April, 09:01

3[-x + (2 X + 1) ] = x - 1.

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Answers (2)
  1. 9 April, 10:31
    0
    Answer: x = - 2 2x

    Step-by-step explanation:

    3[-x + (2x + 1) ] = x - 1

    3 [ - x + 2x + 1] = x - 1

    -3x + 6 + 3 = x - 1

    Collecting like terms, we have:

    -3x + 6x - x = - 1 - 3

    2x = - 4

    Divide both sides by 2, we have

    x = - 4/2 = - 2
  2. 9 April, 10:50
    0
    x=-2

    Step-by-step explanation:

    3[-x + (2x + 1) ] = x - 1

    Remove inside parentheses:

    3[-x + 2x + 1] = x - 1

    Collect like terms:

    3 (x+1) = x-1

    Multiply parentheses by 3:

    3x + 3 = x - 1

    Move terms:

    3x - 3 = x - 1

    Collect like terms:

    2x = - 1 - 3

    Calculate:

    2x = - 4

    DIvide both sides by 2:

    x = - 2

    Solution:

    x = - 2
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