Xian and his cousin kai both collect stamps. xian has 60 stamps, and kai has 76 stamps. the boys recently joined different stamp-collecting clubs. xian's club will send him 20 new stamps per month. kai's club will send him 16 new stamps per month. after how many months will xian and kai have the same number of stamps? how many stamps will each have? after ( ) months xian and his cousin will have ( ) stamps each.