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n in (-oo:+oo)
n-7 = -2 // + 2
n-7+2 = 0
n-5 = 0 // + 5
n = 5
n = 5
| 6=w+5 | | 5+t=3 | | m+9=-3 | | (2*12)10+4-6= | | n+6=18 | | b/-7=6 | | 7=x-3 | | 5w=5 | | -5+b=5 | | a+7=8 | | m+5=-1 | | k-3=-5 | | k-5=-9 | | a/3=6 | | d/-6=7 | | 10+w=15 | | d+7=0 | | -9=w+3 | | d+10=5 | | a+2=11 | | w-8=-7 | | m+7=17 | | 3+n=2 | | 5=k-7 | | 6w=-60 | | d/-3=6 | | -21=t-10 | | k+8=18 | | 19=w+9 | | t/-3=7 | | w+6=7 | | -6+n=-5 |