f(x,y,z):= x^5*(1/z+15)-17*x^4 + 48*x^2 + 32;
g(x,y,z):= y^5*(1/x+15)-17*y^4 + 48*y^2 + 32;
h(x,y,z):= z^5*(1/y+15)-17*z^4 + 48*z^2 + 32;

solve(f(x,y,z),z);

solve(g(x,y,z),x);

solve(h(x,y,z),y);