155208

A=1.5 or 3/2
B=.667 or 2/3
C=3
d=1
e=4

I basically A by looping through all the equations by using logic that kept the other variables in terms of A untill i got down to the ea=6, where i got a2=9/4, so a=3/2 or 1.5 which i used to find the b value in the first equation then used the b value to find the c and so on.