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The equation x-8/(|x-3|)=3-8/(|x-3|) has...

The equation `x-8/(|x-3|)=3-8/(|x-3|)` has (a)only one solution (b) infinite solutions (C)no solution (d) none of these

A

only one solution

B

infinite solutions

C

no solution

D

two solutions

Text Solution

AI Generated Solution

The correct Answer is:
To solve the equation \( \frac{x - 8}{|x - 3|} = 3 - \frac{8}{|x - 3|} \), we will follow these steps: ### Step 1: Rewrite the equation Start with the given equation: \[ \frac{x - 8}{|x - 3|} = 3 - \frac{8}{|x - 3|} \] ### Step 2: Combine the terms To eliminate the fraction, we can multiply both sides by \( |x - 3| \) (keeping in mind that \( |x - 3| \neq 0 \)): \[ x - 8 = (3|x - 3|) - 8 \] ### Step 3: Rearrange the equation Rearranging gives us: \[ x - 8 + 8 = 3|x - 3| \] \[ x = 3|x - 3| \] ### Step 4: Analyze the absolute value Now, we need to consider two cases based on the definition of absolute value. **Case 1:** \( x - 3 \geq 0 \) (i.e., \( x \geq 3 \)) In this case, \( |x - 3| = x - 3 \): \[ x = 3(x - 3) \] \[ x = 3x - 9 \] \[ 9 = 2x \quad \Rightarrow \quad x = \frac{9}{2} = 4.5 \] Since \( 4.5 \geq 3 \), this solution is valid. **Case 2:** \( x - 3 < 0 \) (i.e., \( x < 3 \)) In this case, \( |x - 3| = -(x - 3) = 3 - x \): \[ x = 3(3 - x) \] \[ x = 9 - 3x \] \[ 4x = 9 \quad \Rightarrow \quad x = \frac{9}{4} = 2.25 \] Since \( 2.25 < 3 \), this solution is also valid. ### Step 5: Check for restrictions However, we must check if either of these solutions leads to a division by zero in the original equation. The expression \( |x - 3| \) becomes zero when \( x = 3 \). Both solutions \( x = 4.5 \) and \( x = 2.25 \) do not equal 3, so they do not cause any issues with the denominator. ### Conclusion Thus, the equation has two valid solutions: \( x = 4.5 \) and \( x = 2.25 \). However, since the problem asks for the type of solution, we need to consider the options given. The correct answer is: (b) infinite solutions.
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