1.Gunakan metode eliminasi spldv berikut: A.y-x=0 dan x-2y=9 B.2x-3y=14 dan x=5y Tolong di jawab ya ,bsok di kumpul

A) x-nya dipindah ke depan dulu
-x + y = 0 | x2 | -2x + 2y = 0
x - 2y = 9 | x1 | x - 2y = 9
—————— +
-1x = 9 (2y dieliminasi)
x = 9 : -1
x = -9
-x + y = 0
x - 2y = 9
————— +
-1y = 9 (x dieliminasi)
y = 9 : -1
y = -9

B) 2x - 3y = 14| x5 | 10x - 15y = 70
x - 5y = 0 | x3 | 3x - 15y = 0
—————— -
7x = 70 (15y dieliminasi)
x = 70 : 7
x = 10
2x - 3y = 14 | x1 | 2x - 3y = 14
x - 5y = 0 | x2 | 2x - 10y = 0
——————— +
-13y = 14 (2x dieliminasi)
y= ga tau

Semoga membantu ya...