7*7/30-(5*10/30 - y)= 3*19/30
49/30-50/30+y=57/30
49/30-50/30-57/30=-y
1/30(49-50-57)=-y
-58/30=-y
y=58/30
(x- 1*9/17) + 2*14/17= 5*5/17
-9/17+28/17-25/17=-x
-1/17(9-28+25)=-x
x=6/17
7*7/30-(5*10/30 - y)= 3*19/30
49/30-50/30+y=57/30
49/30-50/30-57/30=-y
1/30(49-50-57)=-y
-58/30=-y
y=58/30
(x- 1*9/17) + 2*14/17= 5*5/17
-9/17+28/17-25/17=-x
-1/17(9-28+25)=-x
x=6/17