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d in (-oo:+oo)
d+2 = 0
d+2 = 0 // - 2
d = -2
d = -2
| -2+d=-9 | | b+1=10 | | -6m=0 | | 5m=-25 | | 9+d=12 | | (3x-2)*5=(x+4)*2 | | 6+w=14 | | k/5=7 | | 17=m+9 | | n-9=-19 | | 1.15x+0.40(200-x)=1.25x | | -18=t-8 | | 7+a=4 | | k+9=10 | | 1=w-8 | | -16n=-64 | | 18=a+7 | | b+1=11 | | w/-5=-1 | | -13=a-6 | | (y+6)(y+6)=81 | | b+3=0 | | b+7=-1 | | 9+k=13 | | 6+t=18 | | k+6=15 | | d-3=7 | | 7d=70 | | -8-4(6-4p)=5(p-6)-27 | | t+1=11 | | 0=t-8 | | n+6=0 |