2x+3y=15 x+3y=20 Metode eliminasi

2x+3y=15 |×1| 2x+3y=15
x+3y = 20 |×2| 2x+6y=40
___________________ -
-3y=-25
y=25/3
y= 8.3

2x+3y=15
x+3y=20
________-
x = -5

x + 3y=20
-5+3y=20
3y=20+5
3y=25
y=25/3