Mathematics, 23.08.2019 05:30 zoieisabella
Aparticular chemistry book costs $6 less than a particular physics book, while two such chemistry books and three such physics books cost a total of $123. construct two simultaneous equations and solve them using the substitution method.
hint: chemistry book is $21, physics is $27
Answers: 1
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Aparticular chemistry book costs $6 less than a particular physics book, while two such chemistry bo...
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