Dengan metode gabungan (eliminasi - subtutusi), tentukan himpunan penyelesaian sistem persamaan. [tex]2x -y - z = 3 \\ x + 3y - 2z = 11 \\ 3x - 2y + 4 z = 1[/te

2x - y - z = 3
2X + 6y - 4z = 22
---------------------- -
-7y + 3z = -19
3z = 7y -19
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3x + 9y - 6z = 33
3x - 2y + 4z = 11
----------------------- -
11y - 10z = 22
11y - 10/3 (3z) = 22
11y - 10/3 (7y-19) = 22
11y-70y/3 +190/3 = 22

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