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11 December, 16:34

If 15+3x=3 (2-2x), then x = [blank]

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  1. 11 December, 19:46
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    x = - 1

    Step-by-step explanation:

    15+3x=3 (2-2x)

    Distribute

    15+3x = 6 - 6x

    Add 6x to each side

    15+3x+6x = 6-6x+6x

    15+9x = 6

    Subtract 15 from each side

    15-15+9x = 6-15

    9x = - 9

    Divide by 9

    9x/9 = - 9/9

    x = - 1
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