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4 June, 20:37

If AC = 18, BC = 6x + 5 and AB = 5x + 2 find BC

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  1. 4 June, 21:01
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    BC = 11

    Step-by-step explanation:

    AC = AB + BC

    18 = (5x + 2) + (6x+5)

    18 = 11x + 7

    18-7 = 11x

    x = 11 / 11

    x = 1

    BC = 6x + 5 = 6 * (1) + 5 = 11
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