SOLUTION: your friend read one less than twice as many books as you did this summer. Together you read 20books. How many books you and your fiend read?

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Question 1023890: your friend read one less than twice as many books as you did this summer. Together you read 20books. How many books you and your fiend read?
















Answer by Cromlix(4381) About Me  (Show Source):
You can put this solution on YOUR website!
Hi there,
Make the number of books you read = 'x'
Your friend read 2x - 1
Total:
x + (2x - 1) = 20
x + 2x = 20 + 1
3x = 21
x = 7
You read 7 books
Your friend read 13 books.
Hope this helps :-)