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syms a b c d e f k1 k2 k3 k4 k5 k6 k7 k8 k9 k10 k11 p1 p2 p3
eq1= k1*p1*a-k2*b-k5*b*f;
eq2=2*k3*p2*e^2-2*k4*f^2-1.5*k5*b*f-k6*c*f+k7*d*e;
eq3= k5*b*f-k6*c*f+k7*d*e-2*k10*c^2-k11*d*c;
eq4= k6*c*f-k7*d*e-k8*d+k9*p3*a-k11*d*c;
eq5= a+b+c+d-1;
eq6= e+f-1;
[a,b,c,d,e,f]=solve(eq1,eq2,eq3,eq4,eq5,eq6,'a','b','c','d','e','f')
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