How to rearrange multiple variables within multiple equations.

I have these 4 equations. I need to isolate Ia_dot,Ib_dot,Ic_dot, and If_dot (Each variable should not contain the other 3 variables). Each variable is syms and is defined as 'real'.

      Ia_dot = -(Rss*Ia+Va)/Lss + (X_deva*we*If+Xa*If_dot)/Lss
      Ib_dot = -(Rss*Ib+Vb)/Lss + (X_devb*we*If+Xb*If_dot)/Lss;
      Ic_dot = -(Rss*Ic+Vc)/Lss + (X_devc*we*If+Xc*If_dot)/Lss;
      If_dot = -(Rf/Lf)*If - Vf/Lf+([X_deva X_devb X_devc]*[Ia Ib Ic]'*we+[Xa Xb Xc]*[Ia_dot Ib_dot Ic_dot]')/Lf;

I have tried to use the solve function. My attempt with solve, I get "Empty sym: 0-by-1"

    Ia_eqn = Ia_dot == -(Rss*Ia+Va)/Lss + (X_deva*we*If+Xa*If_dot)/Lss;
    Ib_eqn = Ib_dot == -(Rss*Ib+Vb)/Lss + (X_devb*we*If+Xb*If_dot)/Lss;
    Ic_eqn = Ic_dot == -(Rss*Ic+Vc)/Lss + (X_devc*we*If+Xc*If_dot)/Lss;
    If_eqn = If_dot == -(Rf/Lf)*If - Vf/Lf+([X_deva X_devb X_devc]*[Ia Ib Ic]'*we+[Xa Xb Xc]*[Ia_dot Ib_dot Ic_dot]')/Lf;
    solve([Ia_eqn,Ib_eqn,Ic_eqn,If_eqn], If_dot)

Any help will be deeply appreciated!