8(3b-12)-4(5b-3)=
24b-96-20b+12=
4b-84=4(-3)-84=-12-84=-96
8(3-3-12)-4(5-3-3)
8(-12)-4(-1)
-96-4(-1)
-96+4=-92
8(3b-12)-4(5b-3)=
24b-96-20b+12=
4b-84=4(-3)-84=-12-84=-96
8(3-3-12)-4(5-3-3)
8(-12)-4(-1)
-96-4(-1)
-96+4=-92