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In solving the rational equation -1over x-3 = 2x over x-3 you find that the solutions are -1/2 and 3. However, 3 is an extraneous solution. Why?

A.
There can only be one solution.
B.
The denominators can't be zero.
C.
The rational expressions will be zero.
D.
There was an error in the calculations

Question

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In solving the rational equation -1over x-3 = 2x over x-3 you find that the solutions are -1/2 and 3. However, 3 is an extraneous solution. Why?


A.
There can only be one solution.     
B.
The denominators can't be zero.
C.
The rational expressions will be zero.
D.
There was an error in the calculations

welshfella · Answer

replace the x's in the equation by 3 
what do you get?

anonymous · Answer

The denominators can't be zero.

welshfella · Answer

right

welshfella · Answer

B is the correct option.