tolong buat caranya juga yah

1. -2x + y = 1 | x2 | -4x + 2y = 2
7x - 2y = -26 | x1 | 7x - 2y = -26

-4x+2y=2
7x-2y=-26
---------------- +
3x = -24
x = -8

disubtitusi =
-4x+2y=2
-4(-8) + 2y=2
32 + 2y = 2
2y = 2-32
2y = -30
y = -15

jadi x= -8 , y=-15


2. x - 3y = 14
-x + 5y = -20
----------------------- +
2y = -6
y = -3

disubtitusi
x-3y = 14
x-3(-3) = 14
x+9 = 14
x = 14-9
x = 5

jadi x=5 , y=-3

semoga membantu :)