## Uncommon case in Arden’s lemma \$q_{2} = 1q_{2} \cup 0q_{2}\$

I’m trying to get the regular expression of an automata but an state has a form that I don’t know how to solve, the form on it’s simplest example is:
$$q_{2} = 1q_{2} \cup 0q_{2}$$ What’s the procedure to solve this form? Thanks in advance