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11 December, 02:51

AC=3x+3, AB=-1+2x and BC = Find x

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  1. 11 December, 06:01
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    Set AC and AB equal to each other

    3x+3=-1+2x

    put your Xs on one side.

    subtract 2x on each side.

    1x+3=-1

    subtract your 3 from each side.

    1x=-4

    divide

    x=-4

    to find BC, plug in x into the equation if it tells you to.
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