11 7/15-(k-3 1/75)=8 13/2511 7/15-k+3 1/75=8 13/25-k=8 13/25-3 1/75-11 7/15 5 3k=11 7/15+3 1/75-8 13/25k=11 35/75+3 1/75-8 39/75k=14 36/75-8 39/75k=5 72/75k=5 24/25(19-x)-4 3/22=7 8/33 2 3 19-x=7 8/33+4 3/2219-x=7 16/66+4 9/6619-x=11 25/66-x=11 25/66-19x=19-11 25/66x=7 41/66(12 7/8-y)+5 3/4=13 5/8 212 7/8-y=13 5/8-5 3/412 7/8-y=13 5/8-5 6/8-y=13 5/8-5 6/8-12 7/8y=12 7/8+5 6/8-13 5/8y=515 7/30-(y+9 44/45)=4 11/45-y=4 11/45-15 7/30+9 44/45 3 2 2y=15 7/30-4 11/45-9 44/45y=15 21/90-4 22/90-9 88/90y=1 1/90