Problem No. 2.7 10 Pa 3 x-72 +4x3 5 -2x1+6x2-7x3-2 x4-5 x-4x2 +3 x3 +2x4-6 Solve...
/ 10 pts. Problem No. 2.6 1 + 2 x2 + 4 = + 2x2 + 2 x3 = 1 | x1 +2 x2 + 3x3 = -6 Solve the system of linear equations by modifying it to REF and to RREF using elementary equivalent operations. Show REF and RREF of the system. Matrices may not be used. Show all your work, do not skip steps. Displaying only the final answer is not enough to get credit.
Problem No. 2.4 0PS 2.xi-7x2-5x3 1 -7x1-32-9x3-3 Solve the system of linear equations by modifying it to REF and to RREF using elementary equivalent operations. Show REF and RREF of the system Show all your work, do not skip steps Displaying only answer is not enough to get credit Matrices may not be used