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Mateo and Kristen want to know the combined number of arcade games they played today. They both played 4 games for a dollar, but Mateo also won 5 free games. Kristen says the combined number is 4M + 5 + 4K, where M is the combined amount is5(M + K) + 4. Who is right? Why?

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edwardosmith00
Im pretty sure Kristen is right because Kristen didn't win free games. 4M is for each game Mateo has played while 4K is for each game Kristen played in a sense of paying. The 5 is standalone for the free since it's a constant.

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