Re: number with ....


"The Last Danish Pastry" <clivet@xxxxxxxxx> wrote in message
news:504bo1F1di7n4U1@xxxxxxxxxxxxxxxxxxxxx
"mina_world" <mina_world@xxxxxxxxxxx> wrote in message
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Hello sir~

x + 6xy - y = 1.

(x and y are positive integer).

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I think....
This equation does not exist a solution.
right ?

and then,
How can you show that this does not have a solution ?

Rewrite the equation as x=f(y). It should be clear then.

Yes, x = (1+x) / (1+6y) = 1 + {(-5y)/(1+6y)}.

so, (1+6y) | -5y ==> but impossible.

oh, easy. thank you very much.


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