make ends meet

make (both) ends meet (to have just enough money to pay for the things that you need ) — сводить концы с концами;

Example: My wages were so low that I had to take a second job just to make ends meet. — Мне так мало платили, что я был вынужден подрабатывать, чтобы как-то сводить концы с концами.

see also
[keep the wolf from the door]
[keep body and soul together]
[hand to mouth]
[on the breadline]