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Solve for x: 3|2x - 2| + 6 = 18.

a) x = 3, x = - 3

b) x = 3, x = - 1

c) x = 1, x = - 1

d) x = -3, x = 1

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Answers (2)
  1. 6 May, 02:00
    0
    b

    Step-by-step explanation:

    3|2x-2| = 18-6

    |2x-2| = 12/3

    |2x-2|=4

    2x-2 = + -4

    2x - 2 = - 4

    2x = - 4+2

    2x=-2

    x=-1

    2x - 2 = 4

    2x = 4+2

    2x=6

    x=3
  2. 6 May, 02:12
    0
    answer: b) x = 3, x = - 1

    Step-by-step explanation:

    3|2x - 2| + 6 = 18.

    divid by 3:

    |2x - 2| + 2 = 6

    add - 2 : |2x - 2| = 4

    2x-2=4 or 2x-2=-4

    2x=6 or 2x=-2

    x=3 or x=-1
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