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Given the following rational expression, identify the simplified form below.x−55−x

Question

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Solution

1. Break Down the Problem

We need to simplify the rational expression x55x\frac{x - 5}{5 - x}.

2. Relevant Concepts

To simplify a rational expression, we can factor out common terms and identify any relationships between the numerator and denominator. Specifically, note that 5x5 - x can be rewritten as (x5)-(x - 5).

3. Analysis and Detail

Starting with the expression:

x55x \frac{x - 5}{5 - x}

We can rewrite the denominator:

5x=(x5) 5 - x = -(x - 5)

Putting it back into the expression gives us:

x5(x5)=1 (for x5) \frac{x - 5}{-(x - 5)} = -1 \text{ (for } x \neq 5\text{)}

4. Verify and Summarize

The result is valid for all xx except x=5x = 5, where the original expression is undefined.

Final Answer

The simplified form of the expression is 1-1 (for x5x \neq 5).

This problem has been solved

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