gncaraballo07 gncaraballo07 30-11-2021 Mathematics contestada Which equation would you use to solve the following situation? There are 6 cookies in the cookie jar. Sean bakes some more and now there are 15 cookies in the jar. How many cookies did Sean bake? 6 + x = 15. x - 6 = 15. 15 + 6 = x. 6 - x = 15.