carilah penyelesaian sistem persamaan x+2y=8 dan 2x-y=6!

x+2y=8|2| = 2x+4y=16
2x-y=6|1| = 2x- y= 6
(dikurangi)

5y=10. Dan 2x -2=6
y= 2. 2x=8
x=4

x+2y = 8
2x-y  = 6
------------- -
2x + 4y = 16
2x - y    = 6
----------------- -
5y = 10
y = 2

2x-y = 6
2x-2=6
2x=8
x=4