Question 315328
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Multiply the first equation by 4.  Multiply the second equation by -5.


Add the two equations term-by-term.  The coefficient on the *[tex \Large x] variable will go to zero leaving you with a single equation in *[tex \Large y] that you can solve by ordinary means.


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