1) 5 11/30 -y= 7 7/30 -3 19/30
5 11/30 -y=6 37/30 - 3 19/30
5 11/30 -y=3 18/30
y= 5 11/30- 3 18/30 = 4 41/30 - 3 18/30=1 23/30
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x- 1 9/17=5 5/17 - 2 14/17
x- 1 9/17 = 4 22/17- 2 14/17
x-1 9/17 = 2 8/17
x=2 8/17+ 1 9/17 = 3 17/17 =4