SOLUTION: On the first day of a textbok sale, 25% of the books were sold. If 18 textbooks were sold, how many were sold?

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Question 176245This question is from textbook New Progress in Mathematics
: On the first day of a textbok sale, 25% of the books were sold. If 18 textbooks were sold, how many were sold?This question is from textbook New Progress in Mathematics

Answer by josmiceli(9661) About Me  (Show Source):
You can put this solution on YOUR website!
If 18 textbooks were sold, how many were sold?
18 were sold Huh?
I think the last sentence should be "How many books were for sale?"
Let x= the number for sale
.25x+=+18
x+=+18%2F.25
x+=+72
72 books were for sale