SPLTV 2x-y = 5 3y + z = 0 x + 4z <14

2x-y=5 dikali masing 3 => 6x-3y=15
3y+z=0 dikali masing 1=> 3y+z= 1
Masing2 ditambah
6x + z = 16 dikali masing 4 => 24x + 4z = 64
x+4z = 14 dikali masing 1 => x + 4z = 14
Masing2 dikurang
23x = 50
x= 50/23
x=