A)5 6/7-x=3 2/7
41/7-x-23/7=0
41/7-23/7=X
41-23/7=18/7=2 4/7
Б)y+4 8/11=10 7/10
y+52/11-117/11=0
52-117/11=-y
-65/11=-y /-1
65/11=y
1/5 - 15
1 - x
0.2/1 = 15/x
x = 15/0.2
x = 75
13+22=35
33+4=37
17+12=29
14+25=39
40-30=10
25-5=20
50-30=20
620-x=61*10
61*10=610
620-x=610
x=620-610
x=10