persamaan linear tiga variabel 2x+3y= 2 x+2z= 1 3y+8z= 3 tolong jawab yaa

2x + 3y  = 2
x + 2z  = 1 ||x2

2x + 3y = 2
2x +4z = 2 ||(-)
3y - 4z = 0

3y +8z = 3
3y - 8z = 0|| (-)
18z = 3
x = 3/18= 1/6

x + 2z = 1
2z = 1 - x = 1 - 1/6 = 5/6
z = 5/12

2x+ 3y = 2
3y= 2 - 2x = 2 - 2(1/6) = 5/3
y = 5/9

Materi : SPLTV

2x + 3y = 2 ......... 1)
x + 2z = 1 ............ 2)
3y + 8z = 3 ......... 3)

2x + 3y = 2 ..... ×1
x + 2z = 1 ........ ×2
◆◆◆◆◆◆◆◆◆◆◆◆◆
2x + 3y = 2
2x + 4z = 2
◆◆◆◆◆◆◆◆◆◆◆[-]
3y - 4z = 0

3y - 4z = 0
3y + 8z = 3
◆◆◆◆◆◆◆◆◆◆ [-]
-12z = -3
z = -3/1-12
z = 3/12
z = 1/4

x + 2z = 1
x + 2(1/4) = 1
x + 2/4 = 1
x = 1 - 2/4
x = 4/4 - 2/4
x = 2/4
x = 1/2

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

Hp = {1/2 , 1/3 , 1/4 }

Semoga Membantu ^_^