please help. please do not copy the answer from another website. I would to have a proper answer. thank you

Mathematica (or Wolfra mAlpha), Octave, SymboLa b, or whatever. This week, use that software to solve a linear algebra problem of the form -- _p .p Ax = b which represents at least a 4x4 system of equations. You may use inverse methods, row reduction methods, or whatever you think is best (and easiest!) with your software. Be sure to show both your input and outputs from the software as well as the solution methods. In addition, for the same matrix A, find its eigenvalues, that is, solve -b -o Ax = Ax Compare this solution (and methods) with your original system -- what is the meaning of each (try and frame your answer in terms of vectors.)