433. Several people have to pay 800 francs for the production of a lawsuit. But three of them have no money, so the rest have to add 60 francs to their share. How many participants are there in the payment of legal costs?
433. We form the equation $\frac{80}{x+3}=\frac{800}{x}-60$, where $x-$ is the number of participants in the payment. $x^{2}+3 x=40$, from which $x=5$.