- #1
ElectroViruz
- 22
- 1
Question : [ x / (x - 3) ] + 3 = 3 / (x - 3)
Attempt :
So what I did was simplifying the left hand side of the equation,
[ x / (x -3) ] + (3 / 1) = 3 / (x - 3)
[(4x - 9) / ( x - 3) ] = 3 / (x - 3)
then bring the (x - 3) from the right hand side to the left hand side to multiply
[ (4x - 9) / ( x - 3) ] . ( x - 3) = 3
Then the (x -3) cancels off
[ (4x - 9) /(x - 3) ] . (x - 3) = 3
Hence
4x - 9 = 3
Ans : x = 3
But that's not all
I discussed with my friends, some of them had the same answer, and some of them said there wasn't a solution to this. Those to who said there wasn't a solution, their working was
Question : [ x / (x - 3) ] + 3 = 3 / (x - 3)
Switch the position of 3 and right hand side,
[ x / (x - 3) ] - [ 3 / (x - 3) ] = - 3
Therefore,
[(x - 3) / (x - 3) ] = -3
Hence there wouldn't be any solution.
_________________________________________________________________________________________
So which working is right ? x = 3 or no solution ?
Thanks in advance. I really appreciate it :)
Attempt :
So what I did was simplifying the left hand side of the equation,
[ x / (x -3) ] + (3 / 1) = 3 / (x - 3)
[(4x - 9) / ( x - 3) ] = 3 / (x - 3)
then bring the (x - 3) from the right hand side to the left hand side to multiply
[ (4x - 9) / ( x - 3) ] . ( x - 3) = 3
Then the (x -3) cancels off
[ (4x - 9) /
Hence
4x - 9 = 3
Ans : x = 3
But that's not all
I discussed with my friends, some of them had the same answer, and some of them said there wasn't a solution to this. Those to who said there wasn't a solution, their working was
Question : [ x / (x - 3) ] + 3 = 3 / (x - 3)
Switch the position of 3 and right hand side,
[ x / (x - 3) ] - [ 3 / (x - 3) ] = - 3
Therefore,
[
Hence there wouldn't be any solution.
_________________________________________________________________________________________
So which working is right ? x = 3 or no solution ?
Thanks in advance. I really appreciate it :)