2. Consider the S.L.E. x1 + x2 + x3 + x4 + 3x5 = 2 x+3x2+2x3+4x4...

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2. Consider the S.L.E. x1 + x2 + x3 + x4 + 3x5 = 2 x₁+3x2+2x3+4x4 + 2x5 = 2 2x2 + x3 + 3x4+x5 = 2 (a) Write this S.L.E. as a matrix equation Ax = b. (b) Put the augmented matrix for this S.L.E. in reduced row echelon form. (e) Find all solutions of the S.L.E. and express them (if any) in parametric vector form. 2. Consider the S.L.E. x1 + x2 + x3 + x4 + 3x5 = 2 x₁+3x2+2x3+4x4 + 2x5 = 2 2x2 + x3 + 3x4+x5 = 2 (a) Write this S.L.E. as a matrix equation Ax = b. (b) Put the augmented matrix for this S.L.E. in reduced row echelon form. (e) Find all solutions of the S.L.E. and express them (if any) in parametric vector form.