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19 October, 12:13

Is - 9 a solution of - 9f=90-f

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  1. 19 October, 12:39
    0
    f = - 11.25

    Step-by-step explanation:

    -9f = 90 - f

    -8f = 90

    f = 90 / - 8

    f = - 11.25
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