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6x-y=5 /*2
3x+2y=9
12x-2y=10
15x=19 /:15
x=19/15
6x-y=5
6*19/15 -y=5
38/5 -y=5
-y=5-38/5
-y=25/5 -38/5
-y=-13/5 /:(-1)
y=13/5
odp
x=19/15=1 4/15
y=13/5=2 3/5
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