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If f (x) = 5x-7 what is f (3) ?

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  1. 21 May, 19:22
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    You would substitute 3 in place of the x. Example: 5 (3) - 7=8
  2. 21 May, 19:39
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    f - 1 (x) = 7 5 + x 5 f-1⁢x=75+x5
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