Use matlab backslash operator to output the solution of system of equation.
Print the unknowns in console.
Equations are
20*n+8*z+13*m=9,
2*n+17*z+16*m=10,
11*n+19*z+16*m=7,
Aer=[20,8,13;2,17,16;11,19,16];
ber=[9;10;7];
xer=Aer\ber;
fprintf('n=%f\n',xer(1))
fprintf('z=%f\n',xer(2))
fprintf('m=%f\n',xer(3))
% OUTPUT
n=-0.176140
z=-0.707368
m=1.398596
Matlab command window code
============================================================================================
A=[20,8,13;2,17,16;11,19,16]
b=[9;10;7]
x=A\b
============================================================================================
Output
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