Tentukan himpunan penyelesaian SPLTV dari: 2x-y+z=6 x-3y+z=-2 x-2y-z=3 dengan menggunakan metode eliminasi dan substitusi.... Please dijawab bsok sdh dikumpul b

x - 3y + z = -2
x - 2y - z = 3
------------------- +
2x - 5y = 1
2x = 1 + 5y
x = (1 + 5y)/2

2x - y + z = 6
x - 3y + z = -2
---------------------- -
x + 2y = 8
x = 8 - 2y

(1 + 5y)/2 = 8 - 2y
1 + 5y = 16 - 4y
9y = 15
y = 15/9
y = 5/3

x = 8 - 2y
x = 8 - 2(5/3)
x = 8 - 10/3
x = 14/3

2x - y + z = 6
2(14/3) - (5/3) + z = 6
23/3 + z = 6
z = - 5/3