Question: Please help me solve. Do not use matrices. Problem No. 1.6 / 10 pts. 7 x1 - x2 + 6 x4 = 3 -2x1 -

Please help me solve. Do not use matrices.

Problem No. 1.6 / 10 pts. 7 x1 - x2 + 6 x4 = 3 -2x1 - 5 x2 + 5 x3 + X4 = 1 x1 + 2 x2 - 3 x3 - 2 x4 = -5 5 x1 - 6 x2 + 5 x3 + 7 X4 = 2 Determine if the given systems is consistent. Do not completely solve the system. The system has to be modified to Row Echelon Form (REF) Do not use matrices. Show all your work, do not skip steps. Displaying only final answer is not enough to get credit

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