Find an ordered triple to represent vector x in x = -6z+1/4y if vector y=<2,18,-4/5> and vector z = <-1/2, 3/4, -1/6> Please and thank you.

Multiple Choice:
a) <25/8, 0, 4/5>
b) <7/2, 0, 4/5>
c) <7/2, 0, 6/5>
d) <7/2, 33/8, 4/5>