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n in (-oo:+oo)
13 = n+10 // - n+10
13-n-10 = 0
3-n = 0 // - 3
-n = -3 // * -1
n = 3
n = 3
| a/-6=-6 | | m/7=6 | | 13=k+1 | | 1.2x=11.4y | | 1.2x=11 | | 16=w+8 | | k/-2=6 | | -7x=77 | | w-10=-10 | | 4=m+10 | | d/-3=-4 | | 14=k+3 | | 7=d+2 | | k+3=-5 | | 3+k=-8 | | 6+a=13 | | 2+m=8 | | -2=a+1 | | k/6=-5 | | 7+8b-12=3b-8+5b | | -9+d=-13 | | 7+w=-4 | | -10+b=-2 | | 2=d+8 | | k/3=-5 | | 5x=7y | | 13=t+1 | | -13=w-6 | | t-6=-2 | | m-3=-1 | | -7b=-21 | | 18=d+9 |