See your other post below.
If you use acid solution AND use
N2O4 ==> 2NO3^- as the starting point for the second equation I'll be you can balance the whole thing. Try it and let me know but especially tell me what you don't understand if that doesn't work for you.
Balance TeO3^3- + N2O4 --> Te +NO3^- using oxidation numbers
3 answers
That other post is above and not below but it adds no other useful information.
I figured it out! thanks