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9 March, 16:04

Solve the following equation: (g x f) (x) when f (x) = x+5 and g (x) = 7x

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  1. 9 March, 16:18
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    (g o f) (x) = g (f (x))

    basically

    put f (x) for every x in g (x)

    g (f (x)) = 7 (f (x))

    f (x) = x+5

    g (f (x)) = 7 (x+5)

    g (f (x)) = 7x+35

    (g o f) (x) = 7x+35
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