SOLUTION: 1. A man sold x similar books for $132. if he had sold (x-1) books but charges $1 more for each book he would have received then same amount of money find the value of x.

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Question 388650: 1. A man sold x similar books for $132. if he had sold (x-1) books but charges $1 more for each book he would have received then same amount of money find the value of x.
Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
Let 132%2Fx be the price of each book. We have

%28x-1%29%28132%2Fx+%2B+1%29+=+132

Expanding the left hand side,

132+%2B+x+-+132%2Fx+-+1+=+132

x+-+132%2Fx+=+1

x%5E2+-+x+-+132+=+0

%28x+-+12%29%28x+%2B+11%29+=+0

x+=+12 (take the positive value)