The first reaction is actually two reactions:

$$\ce{4 XeF4 + 8 H2O → 2 Xe + 2 XeO3 + 16 HF + O2}$$

$$\ce{2 XeF4 + 4 H2O → 2 Xe + 8 HF + 2 O2}$$

$$\ce{6 XeF4 + 12 H2O -> 4 Xe + 2 XeO3 + 24 HF + 3O2}$$

The first reaction is actually two reactions:

$$ \begin{align} \ce{4 XeF4 + 8 H2O &→ 2 Xe + 2 XeO3 + 16 HF + O2} \\ \ce{2 XeF4 + 4 H2O &→ 2 Xe + 8 HF + 2 O2} \\ \hline \ce{6 XeF4 + 12 H2O &-> 4 Xe + 2 XeO3 + 24 HF + 3O2} \end{align} $$