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3-63.

mc1 ch3 3-13finalNathan wants you to solve this puzzle: “I am thinking of a number. If you divide my number by and add , you will get . What is my number?” Show all of your work. Homework Help ✎ 

Work backwards to get Nathan's number.

Start with the end number, which is .

Now instead of adding , subtract .You should now have .

Instead of dividing by , multiply it by to get Nathan's number.