Answer to Question #175575 in Linear Algebra for william

Question #175575

solve the system of linear equations.

x-y + 2z = 5

2x - 2y + 4z = 10

3x - 3y + 6z = 15


1
Expert's answer
2021-03-30T16:28:18-0400

xy+2z=52x2y+4z=103x3y+6z=15x-y+2z=5\\ 2x-2y+4z=10\\ 3x-3y+6z=15\Darrxy+2z=52x2y+4z=10  /23x3y+6z=15  /3x-y+2z=5\\ 2x-2y+4z=10\space|\space/2\\ 3x-3y+6z=15\space|\space/3\Darrxy+2z=5xy+2z=5xy+2z=5x-y+2z=5\\ x-y+2z=5\\ x-y+2z=5\Darrxy+2z=5x-y+2z=5


Answer: (y2z+5y-2z+5; yy; zz) where y ϵ Ry\space\epsilon\spaceℝ, z ϵ Rz\space\epsilon\spaceℝ.


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