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14 June, 10:17

What does x = in the equation 8x-9=x+9

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  1. 14 June, 10:39
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    x = 2 4/7

    Step-by-step explanation:

    8x - 9 = x + 9

    Add 9 to both sides

    8x - 9 + 9 = x + 9 + 9

    8x = x + 18

    Collect like terms

    8x - x = 18

    7x = 18

    Divide both sides by 7

    7x/7 = 18/7

    x = 2 4/7
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