Given the function f(x) =x+3 witch of the following represents f-1(x)?

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**Answer:**

(x) = x - 3

**Step-by-step explanation:**

let y = f(x) and rearrange making x the subject, that is

y = x + 3 (subtract 3 from both sides )

y - 3 = x

Change y back into terms of x with x = (x) , thus

(x) = x - 3