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t in (-oo:+oo)
-4 = t+5 // - t+5
-t-5-4 = 0
-t-9 = 0 // + 9
-t = 9 // * -1
t = -9
t = -9
| 8+n=13 | | m/5=-6 | | w-4=-8 | | 2[4-d+2d]=12 | | 5y-10/-5 | | 4=w+3 | | -5=k-2 | | 5p-3p=7+3 | | -11=m-6 | | -6+m=-3 | | t-5=-4 | | 6w=66 | | m-6=-15 | | m+9=-1 | | 4=a+9 | | m+7=-5 | | ax+3c=2f | | m/3=-4 | | 3+k=-7 | | w-8=-3 | | d-5=4 | | 6n=-48 | | -8=d+4 | | -1+n=4 | | 8=b+9 | | n-9=-15 | | 8=w+4 | | 5+a=4 | | 11=t+3 | | w-1=7 | | b-1=-13 | | -7=d+5 |