 
 <prompt> "A jar contains 9 blue pens, 21 black pens, and 6 red pens. Four blue pens are removed and then seven black pens are removed. How many pens are left in the jar?"

"Ọja náà ni 9 àwọn peni pupa, 21 àwọn peni dúdú, àti 6 àwọn peni pupa. Níbẹ̀rẹ̀, 4 àwọn peni pupa ti wọlé, àmọ́ 7 àwọn peni dúdú ti wọlé. Níbẹ̀rẹ̀ kí lè wà ní ọja?" <response>: There are 9-4 = 5 blue pens left in the jar.
There are 21-7 = 14 black pens left in the jar.
There are 5+14+6 = 25 pens left in the jar.

The answer will be 25. 