2x - y = 1 2x = 3y + 10 Metode eliminasi Tolong di bantu yahhhhh

Diketahui :
2x - y = 1
2x = 3y + 10 -- 2x - 3y = 10

Jawab :
2x - 3y = 10
2x - y = 1
_________-
0 - 2y = 9
y = -4.5

2x - 3y = 10
2x - 3.(-4.5) = 10
2x + 13.5 = 10
2x = -3.5
x = -1.75

Jadi (x,y) = (-1.75,-4.5)

SPLDV
Metode Eliminasi

2x – y = 1 ................. (1)
2x = 3y + 10
2x – 3y = 10 ............ (2)

Dari pers (1) dan (2)
2x – y = 1
2x – 3y = 10
——————— —
2x = –9
x = –9/2
x = –4,5

2x – y = 1 ................. ×3
2x – 3y = 10 ............ ×1

6x – 3y = 3
2x – 3y = 10
——————— —
4x = –7
x = –7/4
x = –1,75

HP = {–1,75 , –4,5}