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19-03-2015
Mathematics

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least common denominator x-2y=3, 5x+3y=2

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baonguyenq1999 baonguyenq1999

19-03-2015

x=3+2y
plug it in 5x+3y=2
5(3+2y)+3y=2
15+10y+3y=2
15+13y=2
13y=-13
y=-1
x=1

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