solving complex equation

HI!
how could i solve this equation with two parameters epsilon_r and epsilon_i with matlab:

syms epsilon_i epsilon_r

Z=i*X+R./(1+epsilon_i*omega_res*c_0*R)+i*omega_res*epsilon_ r*c_0;

[epsilon_r epsilon_i]=solve(Z,epsilon_r,epsilon_i)

matlab shows me:epsilon_r=
10141204801825835211973625643008/16479240766302778484164414124331225*i*(57234424600 3045574775761497227264+265621465258123672020852932 608000*i+91247180322828230809326767022875*i*epsilo n_r)/(2124971722064989376166823460864+72997744258262584 6474614136183*epsilon_r)


How could i simplify this?

thank you