What is the balanced equation for the rxn between NaHCO3 + HCl

is it 2NaHC03 + 2HCl -yields------(arrow to the right) 2NaCl + H20 + 3C02

Try again. That one is really simple.

Right now, in your reaction, you have
-4 H on the left and 2 on the right.
-2 C on the left and 3 C on the right.
-6 O on the left and 7 O on the right.

I suggest you restart from the beginning.