Question
Riordan and Japheth had $231 in all. Japheth had $(12k + 7) more than Riordan. How much did Riordan have if k = 9?


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Riordan and Japheth had $231 in all. Japheth had $(12k + 7) more than Riordan. How much did Riordan have if k = 9?