MATLAB: Infinite result when solving a linear equation

equation

Hello,
After executing this code
[A,B] = equationsToMatrix(allEqns);
X = linsolve(A,B)
where
allEqns =
[ x11/5 + x12/10 + (7*x21)/10 == x11, x11/10 + (4*x12)/5 + x13/10 == x12, x12/10 + x13/10 + x14/10 + (7*x23)/10 == x13, x13/10 + x14/5 + (7*x24)/10 - 7/10 == x14, x11/10 + x21/5 + (7*x31)/10 == x21, x12/10 + x21/10 + x23/10 + (7*x32)/10 == x22, x13/10 + x23/10 + x24/10 + (7*x33)/10 - 1/10 == x23, x14/10 + x23/10 + x24/10 + (7*x34)/10 + 3/5 == x24, x21/10 + (4*x31)/5 + x32/10 == x31, x31/10 + (4*x32)/5 + x33/10 == x32, x23/10 + x32/10 + (7*x33)/10 + x34/10 + 1/10 == x33, x24/10 + x33/10 + (4*x34)/5 + 7/10 == x34]
The result I get is that, all unknown variables (x11-x14, x21-x24, x31-x34) equal to infinity.
So I have 12 equations and 12 unknowns. How is it possible to get the infinity as a result?
Thank you.

Best Answer

rank(A) is only 11
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