SOLUTION: Half the books you own are mysteries. One third are nonfiction. Theother four books are science fiction. How many of your books are mysteries?

Question 549880: Half the books you own are mysteries. One third are nonfiction. Theother four books are science fiction. How many of your books are mysteries?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = number of books you own
mysteries =
nonfiction =
S.F. =
------------

Multiply both sides by

12 of the books are mysteries
check answer:

OK
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