Quote:
Originally Posted by DonCorleone
Shouldn't it be ((x+x)/x)-x=0? Otherwise the solution would be -1...
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In Havell's equation
(x-x)/x-x = 0 | x /= 0
0/x-x=0
0-x = 0
x = 0, which contradicts the statement that x /= 0
So, (x-x)/x-x = 0 has no solution.
Your equation, however, is right only if x /= 0.