Dikekatahui Spldv berikut 3x + 4y = -46 dan 2x = 5y.Nilai dari 4x - 3y

2x = 5y --> 2x - 5y = 0
3x + 4y = -46

Eliminasi x
3x + 4y = -46 ->×2
2x - 5y = 0 ---->×3

6x + 8y = -92
6x - 15y = 0
--------------------- -
23y = -92
y = -92/23
y = -4

subtitusi nilai y = -4 ke persamaan (1)
2x = 5y
2x = 5 × -4
x = -20/2
x = -10

4x - 3y
=4(-10) - 3(-4)
= -40 + 12
= -28

semoga membantu ^-^