(-x) + 3y = 0 dan x + 3y =12 menggunakan metode eliminasi

x+3y=12
(-x)+3y=0
_______ +
0+6y=12
y=2


subtitusi

x+3y=12
x+3(2)=12
x=12-6
x=6

(-x) + 3y = 0
x + 3y = 12
_________ +
6y = 12
y = 12/6
y = 2

(-x) + 3y = 0
x + 3y = 12
_________ -
-2x = -12
x = -12/-2
x = 6