Question: Solve the system of equations using Gaussian elimination. (Use the parameters r, s, and t as necessary. If there is no solution, enter NO

Solve the system of equations using Gaussian elimination. (Use the parameters r,

Solve the system of equations using Gaussian elimination. (Use the parameters r, s, and t as necessary. If there is no solution, enter NO SOLUTION.) x x2 x3 + 2x4 - 2x5 = 1 2x1-x2- -x1-x2+5x3 6 - 4x5 = -9 (a) Perform the back substitution using equations. (b) Perform the back substitution using matrices. (X1, X x5) = =([

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