b ul si c ul plzzzzz ex 2. thx.

b)X+6/2-6x/3
X+6/2-2x
X+6-4x/2
-3x+6/2=6
-3x+6=12
-3x=6
X=6/-3=-2
c)m+3m/2-m3m/3≥2m-3
4m/2-m²≥2m-3
2m-m²≥2m-3
-m²≥-3
m≥±√3