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She ate 3 cookies and then have half of the remaining cookies to her friends. what is a expression the number of cookies deh gave to her friends?
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She ate 3 cookies and then have half of the remaining cookies to her friends. what is a expression the number of cookies deh gave to her friends?

User Roshan Gautam
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x-r times 1/2 because you are subtracting the three cookies from the total unknown amount and then you multiply by 1/2 to find out how much is 1/2 of the difference from the  of x and 3. 
User Alinium
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