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n in (-oo:+oo)
-7 = n+3 // - n+3
-n-7-3 = 0
-n-10 = 0 // + 10
-n = 10 // * -1
n = -10
n = -10
| t=rf | | -7n=-42 | | k-5=-10 | | a/-4=-6 | | 2+a=6 | | b/3=-2 | | x/-4=-6 | | 7w=-77 | | 4+n=12 | | x+(x+2)=23 | | b+1=-11 | | b+1=12 | | b/3=-4 | | 81/7+(-41/10) | | k-3=7 | | w+5=-7 | | w/-6=-6 | | m+10=11 | | 3k=0 | | m/-6=-6 | | -2=a+3 | | d+9=0 | | t+6=13 | | -3/7h=6 | | y-e=Z | | -10=k-10 | | m+2=13 | | w-1=11 | | 10+n=1 | | k-3=4 | | y=-1x-16 | | 3(4)+7x=24 |