Question: Solving Ax=b equation (Linear Algebra)

Hello everyone,

 

Please help me with this:

 

I have a given matrix (with numbers size nxn), within this matrix there is also some parameters. I am asked to find all the b vectors that solves this equation. Important: Firstly, I was asked to find the parameters that gives us Determinant(A)=0.

 

I have a difficulty with 2 parameters or more, and how I suppose to solve this if x and b are (x1,x2,x3)', (b1,b2,b3)' i.e not given.

 

Do I need to give my answer in parameters?

Thanks in advance!

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