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Conflict in General Maths HSC paper 2018!?! (1 Viewer)

unadultarated

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so I used some trial and error to answer this question 27b 2018 General Maths
my answer was x = -2 and y = 3
though HSC answer was different, mine works would they accept that
 

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fan96

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Your answer doesn't work for the second equation:

.
 

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