Using symbolic solver, I seem to not be able to get a system of equations that give me a desired answer. Does a solution not exist?

syms V1 V2 Vp Vn Vxp Vxn Vpx Vnx
syms Rp Rx Rn positive
Ison=((Vp/((Rp*68220)/(Rp+68220)))-(Vxp/((Rx*68220)/(Rx+68220))));
equ1=Vp==(V1+V2)-Ison*Rn;
Isop=((Vn/((Rn*68220)/(Rn+68220)))-(Vxn/((Rx*68220)/(Rx+68220))));
equ2=Vn==(V1+V2)-Isop*Rp;
Isox=((Vnx/((Rn*68220)/(Rn+68220)))-(Vpx/((Rp*68220)/(Rp+68220))));
equ3= Vpx==V1+Rx*Isox;
[Rn, Rp, Rx] = solve([equ1, equ2,equ3],[Rn , Rp, Rx]);

simplify(Rn)
simplify(Rp)
simplify(Rx)
Rn=vpa(subs(Rn,{V1,V2,Vp,Vn,Vxp,Vxn,Vpx,Vnx},{270,270,144.56868,147.38892,125.43132,122.61108,268.58987,271.41013}))
Rp=vpa(subs(Rp,{V1,V2,Vp,Vn,Vxp,Vxn,Vpx,Vnx},{270,270,144.56868,147.38892,125.43132,122.61108,268.58987,271.41013}))
Rx=vpa(subs(Rx,{V1,V2,Vp,Vn,Vxp,Vxn,Vpx,Vnx},{270,270,144.56868,147.38892,125.43132,122.61108,268.58987,271.41013}))
So I am trying to find values for Rn,Rx and Rp. I have three equations and three unknowns. When I use solve to find symbolic equation, I get equations for each variable. But when I sub real values in, I get an answer that is wrong or doesnt make sense. Adding assume doesnt seem to change anything and the return conditions is the same as the equations. The real values of Rn, Rp and Rx should be 2e6,1.5e6 and 700k. If you were to put these values in the original equations, you can verify that these values are correct. How do I get a system of equations that will give me the desired answer?syms V1 V2 Vp Vn Vxp Vxn Vpx Vnx
syms Rp Rx Rn positive
Ison=((Vp/((Rp*68220)/(Rp+68220)))-(Vxp/((Rx*68220)/(Rx+68220))));
equ1=Vp==(V1+V2)-Ison*Rn;
Isop=((Vn/((Rn*68220)/(Rn+68220)))-(Vxn/((Rx*68220)/(Rx+68220))));
equ2=Vn==(V1+V2)-Isop*Rp;
Isox=((Vnx/((Rn*68220)/(Rn+68220)))-(Vpx/((Rp*68220)/(Rp+68220))));
equ3= Vpx==V1+Rx*Isox;
[Rn, Rp, Rx] = solve([equ1, equ2,equ3],[Rn , Rp, Rx]);

simplify(Rn)
simplify(Rp)
simplify(Rx)
Rn=vpa(subs(Rn,{V1,V2,Vp,Vn,Vxp,Vxn,Vpx,Vnx},{270,270,144.56868,147.38892,125.43132,122.61108,268.58987,271.41013}))
Rp=vpa(subs(Rp,{V1,V2,Vp,Vn,Vxp,Vxn,Vpx,Vnx},{270,270,144.56868,147.38892,125.43132,122.61108,268.58987,271.41013}))
Rx=vpa(subs(Rx,{V1,V2,Vp,Vn,Vxp,Vxn,Vpx,Vnx},{270,270,144.56868,147.38892,125.43132,122.61108,268.58987,271.41013}))
So I am trying to find values for Rn,Rx and Rp. I have three equations and three unknowns. When I use solve to find symbolic equation, I get equations for each variable. But when I sub real values in, I get an answer that is wrong or doesnt make sense. Adding assume doesnt seem to change anything and the return conditions is the same as the equations. The real values of Rn, Rp and Rx should be 2e6,1.5e6 and 700k. If you were to put these values in the original equations, you can verify that these values are correct. How do I get a system of equations that will give me the desired answer? syms V1 V2 Vp Vn Vxp Vxn Vpx Vnx
syms Rp Rx Rn positive
Ison=((Vp/((Rp*68220)/(Rp+68220)))-(Vxp/((Rx*68220)/(Rx+68220))));
equ1=Vp==(V1+V2)-Ison*Rn;
Isop=((Vn/((Rn*68220)/(Rn+68220)))-(Vxn/((Rx*68220)/(Rx+68220))));
equ2=Vn==(V1+V2)-Isop*Rp;
Isox=((Vnx/((Rn*68220)/(Rn+68220)))-(Vpx/((Rp*68220)/(Rp+68220))));
equ3= Vpx==V1+Rx*Isox;
[Rn, Rp, Rx] = solve([equ1, equ2,equ3],[Rn , Rp, Rx]);

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