In questions 1-4, state whether the matrices are in echelon form, reduced row echelon form (RREF) or neither form.

Echelon form RREF neither
Echelon form RREF neither

Echelon form RREF neither

Echelon form RREF neither

Given the augmented matrix below that corresponds to a linear system in variables and , what is the correct parametric description of the solution set?

no solution