Which equations are equivalent to the given equation?
49= -7k
a) 49/(-7)=(-7)/(-7)
b) 49*(-7)=-7k/(-7)
c) 49*(-1/7) (=-7k*(-7)
d) 49* (-1/7) = -7k*(-1/7) C&D the 1/7 are fractions