b) = -12x - 6
c) = 4m2 +2 mn - m
d) = 12- 6x + 4x +4= -2x+ 16
e) = 8p - 8 - 4 + 6p = 14p - 12
f) = -7.5x + 3x + 3 - 2x = - 6.5x + 3
