For the reaction NO2 + NO = N2O3

If at a particular temperature, K was 575 and the equilibrium concentration of N2O3 was 2.5M, calculate the equilibrium concentrations of NO2 and NO if they both had the same initial concentrations.

I have this information in a table but i only have the one thing in there, i'm not sure how to get the answer because they didn't give me much information. i'm very confused.

From your description I can't tell what you have and haven't. I suggest you type in the table and the numbers in it. Remember that the board doesn't recognize a space after the first one you make so you must space, for example, with periods. It might look like this.

..............NO2.......NO.......N2O3
initial........2M........2M........0
equilibrium.......................2.5M