X+8=-7
x=-7-8
x=-15
-7+x=9
x=9+7
x=16
x-(-8)=13
x+8=13
x=13-8
x=5
15-x=7
x=15-7
x=8
79+x=-356
x=-356-79
x=-435
x-57=-493
x=-493+57
x=-436
167-x=39
x=167-39
x=128
-542+x=542
x=542+542
x=1084
x/8=7
x=7*8
x=56
x/(-6)=8
x=-8*6
x=-48
56/x=-7
x= -56:7
x= -8
48/x=-8
x=-48:8
x= -6
x/6=-42
x=-42*6
x=-252
x*(-12)=36
x=-36:12
x= -3
54/x=-6
x=-54:6
x= -9