Visual Gauss

Here you have your starting linear system. Your goal is to successively modify the system by operations on the equations to transform it into a trivial system, i.e. the one whose coefficient matrix is the identity.
{ 1 1 1 1 1 = -8         (1)
= 4         (2)
= -9         (3)
= 9         (4)
= 9         (5)
Propose your modification (Step 1)
the equations and
times the equation to the equation .
the equation .


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