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syms  x y  z b c Y   
a1 = 1;
a2 = 1;
e1  = 9;
e2 = 7;
f1 = 56
f2 =98;
g1 = 76;
g2 = 665;
% a = a1+a2;
% e = e1+e2;
% f = f1+f2;
% g = g1+g2;
e = 1;
f = 1;
g = 1;
a = 1;

%
solve(diff(x) == z-y+b*c-c*y-y^2-c*y-c-e-f-g,...
    diff(y)==x-z+b*z-y^2-c^2-c*y-e*f-g,...
    diff(z) == y-x+c*x-b*z+z+b+e*g+f,...
    0==b*c+y*z+e*f+e*g-Y,...
    diff(b) == a*c+x*z+z+e*f*g*Y,...
    diff(c) == a*b+x*y-e*f*x-y^2*c-y*c^2-e*f-f*g,...
    x, y , z ,b ,c, Y)


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