Question 235127
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Let *[tex \Large x] represent Mary's age.  Then *[tex \Large x\ +\ 7] represents Mary's sister's age.


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ x\ +\ (x\ +\ 7)\ =\ 35]


Solve for *[tex \Large x]



John
*[tex \LARGE e^{i\pi} + 1 = 0]
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