Fie m,n ∈ R. Sa se rezolve sistemul ( in R )
x₁+3x₂+5x₃-4x₄=1
x₁+3x₂+2x₃-2x₄+x₅=-1
x₁-2x₂+x₃-x4-x₅=3
x₁-4x₂+x₃+x₄-x₅=m
x₁+2x₂+x₃-x₄+x₅=n