Diketahui sistem persamaan linear 3x + 4y = -46 dan 2x = 5y Nilai 4x - 3y adalah..... A. -36 B. -28 C. -16 D. 16

3x + 4y = -46 (x2)
2x - 5y = 0 (x3)

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

2x = 5y
2x = 5(-4)
2x = -20
x = -20/2
x = -10

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