Haqiqatan ham bu muammoni hal qilish uchun unchalik ko'p narsa yo'q. Bizda radius va markaz bor, shuning uchun biz qilishimiz kerak bo'lgan narsa ularni eslatmalardagi tenglamaning standart shakliga ulashdir.

Bu doiraning tenglamasi,

\[{\left( {x - 6} \right)^2} + {\left( {y - 0} \right)^2} = {3^2}\hspace{0.25in}\hspace{0.25in} \Rightarrow \hspace{0.25in}\hspace{0.25in}\require{bbox} \bbox[2pt,border:1px solid black]{{{{\left( {x - 6} \right)}^2} + {y^2} = 9}}\]