mohon dijawab dengan cara. terimakasih

¾x - ½y = 4
_________×8
6x - 4y = 32

x + 5/2y = -1
_________×6
6x + 15y = -6


6x - 4y = 32
6x + 15y = -6
__________ _
-19y = 38
y = -2

6x + 15y = -6
6x - 30 = -6
6x = 24
x = 4

Nilai 5x + 3y = 5(4) + 3(-2)
= 20 - 6
= 14 (B)