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4 October, 04:09

F (x) = -8x+20; 5-2[f (-1) ]

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  1. 4 October, 06:20
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    Step-by-step explanation:

    f (x) = - 8x + 20

    f (-1) = - 8 * - 1 + 20 = 8+20 = 28

    5 - 2[f (-1) ] = 5 - 2*28 = 5 - 56 = - 51
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