How do I even do this? Inverse Model Matrix

So I solved a system of equations which had three different equations and 3 different variables (x,y,z) in MATLAB which was easy. Now the next question is asking me to

"Solve the equation systems of Problem 5 using the inverse matrix model and MATLAB’s inv command."

How do I do that?

Answer 1

[James Tursa]

To solve the linear system A*x = b for x with matrix A and column vector b known, using the inv function:

x = inv(A) * b;

I am assuming this will be part of an assignment to compare results for various methods, since backslash is the recommended method for this. E.g.,

x = A \ b;