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15 October, 09:09

Evalutate the expression fo rthe given values of the variables.

-4v+3 (w+2v) - 5w; v = - 2 and w = - 4

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  1. 15 October, 10:45
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    -4v + 3 (w + 2v) - 5w

    v = - 2; w = - 4

    subtitute

    -4 · (-2) + 3 · [-4 + 2 · (-2) ] - 5 · (-4)

    = 8 + 3 · (-4 - 4) + 20

    = 8 + 3 · (-8) + 20

    = 8 - 24 + 20

    = - 16 + 20

    = 4
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