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b in (-oo:+oo)
b+9/10 = 9/10 // - 9/10
b+9/10-(9/10) = 0
b+9/10-9/10 = 0
b = 0
b = 0
| 0=a+10 | | w+2/9=67/99 | | n+4=10 | | n-1=-13 | | m-8/9=-13/18 | | b=6 | | a/7=5/7 | | -3/5=b-1 | | w+7=8 | | d+2/3=26/3 | | a+8=7 | | k-4/7=-25/7 | | 31/4=x+7 | | d/4=-4 | | d+2=9 | | 4+t=7 | | 4/9+n=49/9 | | -6/7m=48/7 | | w-1=-2/7 | | w+5=14 | | x+2/3=23/21 | | -1/8+k=13/88 | | -b=-2/3 | | -6m=-30 | | n+3=38/11 | | d+7/8=29/24 | | k+1/2=7/10 | | -7/10+k=-133/90 | | n/-3=-1/4 | | n-3/5=-18/5 | | a+2/3=29/3 | | t+9=16 |