a) Find the general solution of the following system:x3+ 2x4−x5= 4,x4−x5= 3,x3+ 3x4−2x5= 7,2x1+ 4x2+x3+ 7x4= 7.

Q: Do

A: We use Row Reduced Echelon Form (RREF) to find linearly independent solutions.

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Q: 1- use back-substitution to solve the system b) 5x, + 2x2 + x3 = 0 2x, + x2 = 0

A: We have to apply Back Substitution Method to find the solution of system of linear equations.

Q: 1, = 2, =D4

A:

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A: It is false.

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Q: 11) Describe two different ways to use elimination to solve the system below. [3x-4y=-1 (-5x-6y=8

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