11 7/15-(k-3 1/75)=8 13/25
11 7/15-k+3 1/75=8 13/25
-k=8 13/25-3 1/75-11 7/15
5 3
k=11 7/15+3 1/75-8 13/25
k=11 35/75+3 1/75-8 39/75
k=14 36/75-8 39/75
k=5 72/75
k=5 24/25
(19-x)-4 3/22=7 8/33
2 3
19-x=7 8/33+4 3/22
19-x=7 16/66+4 9/66
19-x=11 25/66
-x=11 25/66-19
x=19-11 25/66
x=7 41/66
(12 7/8-y)+5 3/4=13 5/8
2
12 7/8-y=13 5/8-5 3/4
12 7/8-y=13 5/8-5 6/8
-y=13 5/8-5 6/8-12 7/8
y=12 7/8+5 6/8-13 5/8
y=5
15 7/30-(y+9 44/45)=4 11/45
-y=4 11/45-15 7/30+9 44/45
3 2 2
y=15 7/30-4 11/45-9 44/45
y=15 21/90-4 22/90-9 88/90
y=1 1/90