Many people work for the state, so their salary is not high and yes, because of the devaluation they have some troubles. But their salary was two times reevaluated. And it will be reevaluated more.

So my friend who works for the government (nothing special, simple work) gets 300$ per month. 40 working hours per week. He lives with two friends in a three-roomed flat and they pay 350$ per month.

If you are better than middle (the avarage, maybe?) and work a bit more you can have 1000$ - 1500$ without problems. By the way I'm telling about the IT sphere and other incomes are lower. As far as I know usual workers at factories can get 150$ - 200$. Well qualified workers can get two times more. If you live in your town, your parent will have a flat got in the Soviet times almost always. It is usual to live with parents till you get married in Belarus.
Something like that, I think.