SOLUTION: Emily thought of a counting number, and then she added the next counting number to it. She got the sum of 57. What was Emily’s number?

SOLUTION: Emily thought of a counting number, and then she added the next counting number to it. She got the sum of 57. What was Emily’s number?

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Question 1151321: Emily thought of a counting number, and then she added the next counting number to it. She got the sum of 57. What was Emily’s number?
Answer by ikleyn(52839) (Show Source): You can put this solution on YOUR website!
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The integer part of the number  ,  i.e.  28.    ANSWER

If you want, you can solve it via formal algebra.

    n + (n+1) = 57


    2n = 57 - 1

    2n = 56

     n =  = 28.      ANSWER

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