x + 5y =34. 2x - 4 =20 selesaikan dengan cara eliminasi

2x + 10y = 68 ( setelah di kali dua )
2x - 4y = 20
____________ -

14y = 48
y = 48/14 = 4 2/14

2x - 4 (48/14) = 20
2x = 20 + 96/7
2x = 140/7 + 96/7
2x = 236/7
14x = 236
x = 236/14
x = 13 4/14

maaf td aku edit Krn salah