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% Solving Algebraic Linear Equations.
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% Targil 2, Sample-Examination.
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b=[6;9;8;7]  % Column vector;
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c=[0 1 1 1];
d=[1 0 1 1];
e=[1 1 0 1];
f=[1 1 1 0];
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A=[c;d;e;f] % Putting the vectors in a Column
%A=[c; d]
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% The solution:
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% x=inv(A)*b;
x=A\b;  % "\" An equivalent way for inversing matrix.
x;
AINV=inv(A); % Inverse Matrix.
AINV
Ident=AINV*A  % Identity Matrix.

diff=A*x-b; % Checking the solution.
diff