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b in (-oo:+oo)
b+7 = 8 // - 8
b-8+7 = 0
b-1 = 0 // + 1
b = 1
b = 1
| 4m=12/7 | | 2/7x=-6/7 | | -d=-9 | | n/2=6/7 | | 63-5x=13x+21 | | m+2=12 | | b+8=59/8 | | w-5=-3 | | n+2=5/2 | | 4x^3-8x^2+7x-2=0 | | 3/5x=9/25 | | a-9=-99/10 | | 6/5=x+7/10 | | -43/8=t-3/8 | | -3/7k=-30/7 | | 2+d=25/9 | | w+4=19/4 | | 3/5+d=53/5 | | t/-6=5 | | -6/7t=-5/7 | | -1+b=-13/11 | | x-1/5=13/35 | | x+3/5=39/40 | | -7t=-14/5 | | w=-8 | | t+4=27/8 | | 9/4=d+1/4 | | d+9=17 | | -6/7+x=-41/7 | | k-1/2=11/2 | | b-2/7=5/7 | | d+1=19/10 |