Question 972177
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Let *[tex \Large x] represent the amount that Lisa has originally.  Let *[tex \Large y] represent the amount that Lin has originally.  Then *[tex \Large x\ -\ 5] is the amount that Lisa has after the transaction and *[tex \Large y\ +\ 5] is the amount that Lin has after the transaction.


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \,x\ =\ 2y]


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ x\ -\ 5\ =\ y\ +\ 5]


Solve the 2X2 system for *[tex \Large x] and *[tex \Large y].  Hint:  Solve by substitution.


John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it

*[tex \Large \ \
*[tex \LARGE \ \ \ \ \ \ \ \ \ \