Equilibrium, Balance
noun, verbal noun
Equal out your equilibrium and you'll have solid equilibrium.
きんこう
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
不倫でバランスをとって、なんとか心の均衡を保っているんです。
I’m having an affair to keep my balance and my calm.