Marques is a songwriter who collects royalties on his songs whenever they are played in a commercial or a movie. Marques will earn $30 every time one of his songs is played in a commercial and he will earn $120 every time one of his songs is played in a movie. Marques' songs were played on 5 more commercials than movies, and his total earnings on the royalties from all commercials and movies was $900. Determine the number of commercials and the number of movies on which marques' songs were played.



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