SOLUTION: A textbook store sold a combined total of 200 psychology and chemistry textbooks in a week. The number of chemistry textbooks sold was 76 less than the number of psychology te

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Question 1137856: A textbook store sold a combined total of 200
psychology and chemistry textbooks in a week. The number of chemistry textbooks sold was 76
less than the number of psychology textbooks sold. How many textbooks of each type were sold?
Answer by ikleyn(52814)   (Show Source): You can put this solution on YOUR website!
.
C = P - 76


P + (P-76) = 200


2P = 200 + 76 = 276

P = 276/2 = 138     psychology books sold.  ANSWER


C = 200 - 138 = 62  chemistry book sold.    ANSWER


CHECK.   138 - 62 = 76.    ! Correct !

Solved.



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