SOLUTION: A textbook store sold a combined total of 348 sociology and math textbooks in a week. The number of math textbooks sold was 64 less than the number of sociology textbooks sold. Ho

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Question 1187516: A textbook store sold a combined total of 348 sociology and math textbooks in a week. The number of math textbooks sold was 64 less than the number of sociology textbooks sold. How many textbooks of each type were sold?
Answer by ikleyn(52804) About Me  (Show Source):
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A textbook store sold a combined total of 348 sociology and math textbooks in a week.
The number of math textbooks sold was 64 less than the number of sociology textbooks sold.
How many textbooks of each type were sold?
~~~~~~~~~~~~~ 

    Math + Sociology = 348

     x   +   (x+64)  = 348

        2x           = 348 - 64 = 284

         x                      = 284/2 = 142.


ANSWER.  142 Math textbooks and 142+64 = 206 Sociology textbooks.

Solved.