Kelvin gave 2/7 of his money to James. As a result, Kelvin had $140 and James had $100 in the end. How much did James have at first?
+36916 k - 2/7 k = 140 k = 196 originally
196 - 140 = 56 given to James
100 - 56 = 44 dollars is what James originally had
