solve(
	[
		FU=(E*0.18/4*U)-(E*0.18/4*Q),
		(FD-20)=(12*E*0.0054/4^3)*D +( 6*E*0.0054/4^2 )*T- (12*E*0.0054/4^3)*C +(6*E*0.0054/4^2)*S,
		(FT-13.3)=6*(E*0.0054/4^2)*D + (4*E*0.0054/4)*T -( 6*E*0.0054/4^2)*C + (2*E*0.0054/4)*S,
		(FQ+0)= (-E*0.18/4)*U+(E*0.18/4)*Q,
		(FC-20)=(-12*E*0.0054/4^3)*D - (6*E*0.0054/4^2)*T + (12*E*0.0054/4^3)*C - (6*E*0.0054/4^2)*S,
		(FS+13.3)=(6*E*0.0054/4^2)*D + (2*E*0.0054/4)*T - (6*E*0.0054/4^2)*C + (4*E*0.0054/4)*S,
		0=D,
		FT=0,
		FS=0,
		C=0,
		U=0,
		T=0.03,
		S=0.01
	],
	[U,D,T,Q,C,S,FU,FD,FT,FQ,FC,FS,E]
);