If there is a loss in a joint venture between two partners, where one partner contributed 2300 of his own money and the other partner contributed the rest (9700), in addition to the first partner's effort, should the loss be divided equally between them, given that the first partner paid the second partner 6000?

The principle governing partnerships is justice. The requirement of justice in them is that profit and loss be distributed among the partners according to the proportion of capital contributed by each, unless they agree to an increased share for one of them in return for his labor. Since only a loss has occurred, the questioner bears approximately 20% of it and the other party 80%, because had there been a profit, it would have been distributed in the same proportion.