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d in (-oo:+oo)
d+6 = 8 // - 8
d-8+6 = 0
d-2 = 0 // + 2
d = 2
d = 2
| 4=d+5 | | d+10=22 | | 17=k+8 | | -(2x-2)+9x=58 | | 5x+6z=77 | | -2=t+3 | | -10+d=0 | | 2=w-8 | | -20=m-10 | | 7=m-3 | | 3=a-4 | | -6+w=-6 | | k+8=16 | | -6b=-24 | | d-1=0 | | 16=k+4 | | m-1=5 | | n+6=17 | | t/-2=-3 | | b-6=-13 | | 3+b=3 | | n+1=5 | | -7+w=-14 | | b-10=-11 | | w-5=-16 | | 2+m=5 | | 0=d-7 | | w-8=-8 | | m-9=0 | | -17=t-10 | | 20=b+9 | | 2n=22 |