Quote:
Originally Posted by Eagle of Fire
I am certainly not a mathematician nor even have higher grades in them... But as far as I am concerned, any division can't equal 0...
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Some can. 0/x = 0 if x /= 0
As for the original equation:
Havell is right, you messed up the second line by saying
(x+x-x)/x = 0
If x+x = x*x, then x+x-x = x^2-x
x = x^2-x
0 = x^2-2x
x^2-2x = 0
x(x-2) = 0 which is possible when and only when x = 0 OR x-2 = 0. The answer is
x = 0 OR x = 2
x = 1 is not a solution.
1+1 = 2
1*1 = 1
1+1 /= 1*1