SOLUTION: Working backwards. Bob says, "I am thinking of a number. If i decrease it by 19, and then add 40, i get 48." What is Bob's number?

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Question 664814: Working backwards. Bob says, "I am thinking of a number. If i decrease it by 19, and then add 40, i get 48." What is Bob's number?
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
48-40=8
8+19=27