soal sistem persamaan linier 3 variable (SPLTV). dit: tentukan HP (x,y,z) berikut ini: 3x+4y-5z=2 2x+5y+z=8 6x-2y+3z=7

2x +5y+z = 8
z = 8 - 2x - 5y

3x + 4y -5z = 2
3x + 4y -5(8 - 2x - 5y) = 2
3x + 4y - 40 + 10 x + 25 y = 2
13x + 29y = 42

6x -2y + 3 z =7
6x - 2y + 3 ( 8 - 2x -5y) = 7
6x - 2y +24 - 6x - 15y = 7
-17y = - 17
y = 1

13x + 29y = 42
13x + 29(1) = 42
13x + 29 = 42
13x = 13
x = 1

z = 8 - 2x - 5y
z = 8 - 2(1) - 5(1)
z = 8 - 2 - 5
z = 1

Hp {1,1,1}