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14 September, 13:31

Let f (x) = 4x-7 and g (x) = 2x + 5

Find f (g (x)).

Not a multiple choice question.

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  1. 14 September, 13:38
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    So the equation to begin with looks like this: 4 (2x+5) - 7, and once you solve it: (8x+20) - 7, and then to 8x+13. Thus 8x+13 is your answer.
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