himpunan penyelesaian x-3y+z=-2 2x-y+z=6 x+2y-z=3 himpunsn penyelesaian adalah

diket.
x-3y+z=-2
2x-y+z=6
x+2y-z=3
ditanya himpunan penyelesaian
-menghilangkan x
x-3y+z=-2 ||×2|| 2x-6y+2z= -4
2x-y+z=6 ||×1 || 2x- y + z= 6
x+2y-z=3 ||×2|| 2x+4y-2z= 6
--------------------- -
3y+5z= -4
5z= -4-3
z= -7/5
z= -1,4
-menghilangkan y
x-3y+z=-2 ||×2|| 2x-6y+2z= -4
2x-y+z=6 ||×6|| 18x-6y+6z= 36
x+2y-z=3 ||×3|| 3x+6y-3z= 9
---------------------- -
12x-6y+11z= 23
-6y= 23-12-11
y= 0/-6
y= 6
-menghilangkan z
x-3y+z=-2 ||×1|| x-3y+z=-2
2x-y+z=6 ||×1|| 2x-y+z=6
x+2y-z=3 ||×1|| x+2y-z=3
--------------- -
-2x+2y-z = 7
-2x= 7-2+1
x= 6/-2
x= -3
hp{(-1,4;6;-3)}
maaf kalau salah:) semoga membantu:)