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Megan has 25 phone numbers stored in her cell phone. abby has some phone numbers stored in her cell phone. together they have a total of 61 phone numbers stored. if n = the number of phone numbers abby has stored in her cell phone, which mathematical sentence expresses the information above?

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meerkat18
The total phone numbers stored in cell phones is the sum of phone numbers stored by Megan and that of Abby. The phone numbers should sum up to 61. The equation that would best show the situation is,
                                   25 + n = 61
If it is desired, we may solve for n and the answer is 36.

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