19. Solve each 3D system using elimination. (A) 2x+3y-2z = 10 x-y-4z=-2 3x+2y+z=1 (B) x+y+z=15 x-y-z=5 x-y+z=31

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19. Solve each 3D system using elimination.
(A) 2x+3y-2z = 10
x-y-4z = -2
3x+2y+z=1
>
(B) x+y+z=15
x-y-z=5
x-y+z=31
Transcribed Image Text:19. Solve each 3D system using elimination. (A) 2x+3y-2z = 10 x-y-4z = -2 3x+2y+z=1 > (B) x+y+z=15 x-y-z=5 x-y+z=31
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