College Algebra Word problem 01

Now try this one on your own!

Jim has 7 times as much money as John, but if Jim earns 4, and John earns8, Jim will have 5 times as much money as John will have then. How much do Jim and John have before and after earning the 4, and8, respectively?
John: 18 (before) ,26 (after) ,
Jim: 126 (before) ,130 (after)


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