SOLUTION: A textbook store sold a combined total of 439 sociology and psychology textbooks in a week. The number of sociology textbooks sold was 75 more than the number of psychology

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Question 1109278: A textbook store sold a combined total of
439
sociology and psychology textbooks in a week. The number of sociology textbooks sold was
75
more than the number of psychology textbooks sold. How many textbooks of each type were sold?
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
psych=x
soc=x+75
add to 439
2x+75=439
2x=364
x=182 psych
x+75=257 soc ANSWER
add to 439