Materi SPLTV 2x – y = 5 3x – z = 0 x + 4z = 14tolong ya sama cara kerjanya juga

1) 2x – y = 5 => 2x = y + 5 => x = (y + 5)/2
2) 3y + z = 0 => z = -3y
3) x + 4z = 14
=> (y + 5)/2 + 4(-3y) = 14 ==> kedua ruas kali 2
=> y + 5 – 24y = 28
=> -23y = 23
=> y = -1
x = (y + 5)/2 = (-1 + 5)/2 = 4/2 = 2
z = -3y = -3(-1) = 3
HP = {(2, -1, 3)}